The scale of the drawing is 1:4, this means that each centimeter of the drawing corresponds to 4 meters in real life.
To determine how long is the volleyball court in real life, given that its length on the drawing is 4cm you have to use cross multiplication:
1cm → 4m
4cm → xm
Both relationships are at the same ratio so that:
![\begin{gathered} (4)/(1)=(x)/(4) \\ 4=(x)/(4) \\ 4\cdot4=4\cdot(x)/(4) \\ 16=x \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/qb5h6q7duyg1hf1rfdox06g4bg0lguwtg9.png)
The length of the volleyball court is 16 meters.