Explanation:
By Basic Proportionality Theorem, the triangles UTV and USR are similar.
Let us consider RV as x.
![\tt{(39)/(26) = (33)/(x)}](https://img.qammunity.org/2022/formulas/mathematics/high-school/zn2341tq5l5zgfe6k7tg7h5pqerlswuoir.png)
![\rm{x = (33 * 26)/(39)}](https://img.qammunity.org/2022/formulas/mathematics/high-school/luf7txd7k3o1qaucoz79m6fvse8dj6ntjn.png)
is the required answer, after simplifying it.
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Or if you want to prove it similar:-
In triangle UTV and USR,
Angle TUV = Angle SUR (common)
Angle UVT = Angle URS (Corresponding angles b/w parallel lines)
By AA similarity,
UTV =~ USR.
Hope it helps :)