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Finding the Fourth Proportional to 57,708, 86,562 and 13,932

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Solution

The fourth proportional to 57,708, 86,562 and 13,932 is: 20,898

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,708 : 86,562 = 13,932 : x
  2. Step 2: Convert to fraction form
    57,708/86,562 = 13,932/x
  3. Step 3: Cross multiply
    57,708x = 86,562 × 13,932
  4. Step 4: Simplify right side
    57,708x = 1,205,981,784
  5. Step 5: Solve for x
    x = 1,205,981,784/57,708
  6. Step 6: Final answer
    x = 20,898

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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.