Introduction

An example of a proportional question is, if I know 10% of Mileyworld is 500m2, how large is Mileyworld? To work this out, we say:

$\dfrac{10\%=500m^2}{100\%=x}$

This is a fraction. We can thus cross-multiply. we therefore know that $10x=500*100$. Therefore, $10x=50,000$. Thus, $x=5,000m^2$.

This is the best method to do this question. You can alternatively think in your logic, if 10% is $500m^2$, therefore 1% is $50m^2$. Thus, 100% would be $5,000m^2$.