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Finding the Fourth Proportional to 20,073.97, 27,706.68 and 13,359.88

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Solution

The fourth proportional to 20,073.97, 27,706.68 and 13,359.88 is: 18,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.97 : 27,706.68 = 13,359.88 : x
  2. Step 2: Convert to fraction form
    20,073.97/27,706.68 = 13,359.88/x
  3. Step 3: Cross multiply
    20,073.97x = 27,706.68 × 13,359.88
  4. Step 4: Simplify right side
    20,073.97x = 370,157,920.00
  5. Step 5: Solve for x
    x = 370,157,920.00/20,073.97
  6. Step 6: Final answer
    x = 18,439.70

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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.