Home / 39,164.13-54,046.55-21,259.12

Finding the Fourth Proportional to 39,164.13, 54,046.55 and 21,259.12

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Solution

The fourth proportional to 39,164.13, 54,046.55 and 21,259.12 is: 29,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.13 : 54,046.55 = 21,259.12 : x
  2. Step 2: Convert to fraction form
    39,164.13/54,046.55 = 21,259.12/x
  3. Step 3: Cross multiply
    39,164.13x = 54,046.55 × 21,259.12
  4. Step 4: Simplify right side
    39,164.13x = 1,148,982,092.04
  5. Step 5: Solve for x
    x = 1,148,982,092.04/39,164.13
  6. Step 6: Final answer
    x = 29,337.61

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Half scale
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Double scale
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Similar ratio
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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.