y : 51,6 = 11,3 : 34,4

To solve the proportion \( y : 51.6 = 11.3 : 34.4 \), we can use cross multiplication. This means we can set up the equation as follows:

\[ y \cdot 34.4 = 51.6 \cdot 11.3 \]

Now, let's calculate \( 51.6 \cdot 11.3 \):

\[ 51.6 \cdot 11.3 = 583.08 \]

Now, we substitute this back into the equation:

\[ y \cdot 34.4 = 583.08 \]

Next, solve for \( y \):

\[ y = \frac{583.08}{34.4} \]

Now, let's perform the division:

\[ y \approx 16.95 \]

Thus, the value of \( y \) is approximately \( 16.95 \).