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Finding the Fourth Proportional to 27,755, 38,302.04 and 15,179.72

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Solution

The fourth proportional to 27,755, 38,302.04 and 15,179.72 is: 20,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755 : 38,302.04 = 15,179.72 : x
  2. Step 2: Convert to fraction form
    27,755/38,302.04 = 15,179.72/x
  3. Step 3: Cross multiply
    27,755x = 38,302.04 × 15,179.72
  4. Step 4: Simplify right side
    27,755x = 581,414,242.63
  5. Step 5: Solve for x
    x = 581,414,242.63/27,755
  6. Step 6: Final answer
    x = 20,948.09

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Double scale
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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.