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Finding the Fourth Proportional to 27,287.72, 37,654.90 and 15,348.68

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Solution

The fourth proportional to 27,287.72, 37,654.90 and 15,348.68 is: 21,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,287.72 : 37,654.90 = 15,348.68 : x
  2. Step 2: Convert to fraction form
    27,287.72/37,654.90 = 15,348.68/x
  3. Step 3: Cross multiply
    27,287.72x = 37,654.90 × 15,348.68
  4. Step 4: Simplify right side
    27,287.72x = 577,953,010.53
  5. Step 5: Solve for x
    x = 577,953,010.53/27,287.72
  6. Step 6: Final answer
    x = 21,179.97

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1.5x scale

Why These Related Problems?

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