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Finding the Fourth Proportional to 29,304.62, 40,440.31 and 15,876.20

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Solution

The fourth proportional to 29,304.62, 40,440.31 and 15,876.20 is: 21,909.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,304.62 : 40,440.31 = 15,876.20 : x
  2. Step 2: Convert to fraction form
    29,304.62/40,440.31 = 15,876.20/x
  3. Step 3: Cross multiply
    29,304.62x = 40,440.31 × 15,876.20
  4. Step 4: Simplify right side
    29,304.62x = 642,038,449.62
  5. Step 5: Solve for x
    x = 642,038,449.62/29,304.62
  6. Step 6: Final answer
    x = 21,909.12

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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.