43. As shown in the figure, line segment $DE$ divides the square paper piece $ABCD$ into $\triangle ADE$ and quadrilateral $EDCB$. It is known that their area ratio $S_{\triangle ADE}: S_{EDCB}=5: 19$, then the ratio of the perimeter of $\triangle ADE$ to the perimeter of quadrilateral $EDCB$ is
Answer: $\frac{15}{22}$