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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 $5,000m^2$ .