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Finding the Fourth Proportional to 25,351.52, 38,028 and 8,711.28

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Solution

The fourth proportional to 25,351.52, 38,028 and 8,711.28 is: 13,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,351.52 : 38,028 = 8,711.28 : x
  2. Step 2: Convert to fraction form
    25,351.52/38,028 = 8,711.28/x
  3. Step 3: Cross multiply
    25,351.52x = 38,028 × 8,711.28
  4. Step 4: Simplify right side
    25,351.52x = 331,272,555.84
  5. Step 5: Solve for x
    x = 331,272,555.84/25,351.52
  6. Step 6: Final answer
    x = 13,067.17

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