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Finding the Fourth Proportional to 27,869.64, 38,458.92 and 15,294.64

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Solution

The fourth proportional to 27,869.64, 38,458.92 and 15,294.64 is: 21,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.64 : 38,458.92 = 15,294.64 : x
  2. Step 2: Convert to fraction form
    27,869.64/38,458.92 = 15,294.64/x
  3. Step 3: Cross multiply
    27,869.64x = 38,458.92 × 15,294.64
  4. Step 4: Simplify right side
    27,869.64x = 588,215,336.19
  5. Step 5: Solve for x
    x = 588,215,336.19/27,869.64
  6. Step 6: Final answer
    x = 21,105.95

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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.