Home / 25,571.51-38,361.39-7,561.56

Finding the Fourth Proportional to 25,571.51, 38,361.39 and 7,561.56

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Solution

The fourth proportional to 25,571.51, 38,361.39 and 7,561.56 is: 11,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.51 : 38,361.39 = 7,561.56 : x
  2. Step 2: Convert to fraction form
    25,571.51/38,361.39 = 7,561.56/x
  3. Step 3: Cross multiply
    25,571.51x = 38,361.39 × 7,561.56
  4. Step 4: Simplify right side
    25,571.51x = 290,071,952.17
  5. Step 5: Solve for x
    x = 290,071,952.17/25,571.51
  6. Step 6: Final answer
    x = 11,343.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.