Proportion-RuleOfThree-Percent

Proportion-RuleOfThree-Percent

Ledon

Available on Google Play
4.0(210)
100,000+ installsFreeTools

Updated Jul 25, 2026 · v2.40

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Simple app to calculate proportions, rule of three, percentages.

Proportions, rule of three, cross-multiplication, percentages. This is a simple app to calculate proportions (rule of 3, cross-multiplication, percentages), by selecting incognite X and entering data. Easily calculate most common cases.

Released
August 25, 2018

7 years on Google Play

Version
2.40
Updated
Jul 25, 2026
Content Rating
Everyone
Installs
100,000+
Developer
Ledon
Website
https://sites.google.com/site/mfpledon/
Email
manuelfernandezparadelaledon@gmail.com
In-app purchases
No

This app isn't currently appearing in any tracked top charts.

Rating breakdown

5★
84
4★
42
3★
84
2★
0
1★
0