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Finding the Fourth Proportional to 27,138.59, 37,446.90 and 15,202.43

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Solution

The fourth proportional to 27,138.59, 37,446.90 and 15,202.43 is: 20,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.59 : 37,446.90 = 15,202.43 : x
  2. Step 2: Convert to fraction form
    27,138.59/37,446.90 = 15,202.43/x
  3. Step 3: Cross multiply
    27,138.59x = 37,446.90 × 15,202.43
  4. Step 4: Simplify right side
    27,138.59x = 569,283,875.97
  5. Step 5: Solve for x
    x = 569,283,875.97/27,138.59
  6. Step 6: Final answer
    x = 20,976.91

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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.