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Finding the Fourth Proportional to 29,167.39, 40,229.50 and 21,997.60

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Solution

The fourth proportional to 29,167.39, 40,229.50 and 21,997.60 is: 30,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,167.39 : 40,229.50 = 21,997.60 : x
  2. Step 2: Convert to fraction form
    29,167.39/40,229.50 = 21,997.60/x
  3. Step 3: Cross multiply
    29,167.39x = 40,229.50 × 21,997.60
  4. Step 4: Simplify right side
    29,167.39x = 884,952,449.20
  5. Step 5: Solve for x
    x = 884,952,449.20/29,167.39
  6. Step 6: Final answer
    x = 30,340.47

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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.