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Finding the Fourth Proportional to 29,332.32, 40,479.12 and 15,904.02

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Solution

The fourth proportional to 29,332.32, 40,479.12 and 15,904.02 is: 21,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,332.32 : 40,479.12 = 15,904.02 : x
  2. Step 2: Convert to fraction form
    29,332.32/40,479.12 = 15,904.02/x
  3. Step 3: Cross multiply
    29,332.32x = 40,479.12 × 15,904.02
  4. Step 4: Simplify right side
    29,332.32x = 643,780,734.06
  5. Step 5: Solve for x
    x = 643,780,734.06/29,332.32
  6. Step 6: Final answer
    x = 21,947.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.