Home / 39,236.66-54,146.24-21,331.62

Finding the Fourth Proportional to 39,236.66, 54,146.24 and 21,331.62

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Solution

The fourth proportional to 39,236.66, 54,146.24 and 21,331.62 is: 29,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.66 : 54,146.24 = 21,331.62 : x
  2. Step 2: Convert to fraction form
    39,236.66/54,146.24 = 21,331.62/x
  3. Step 3: Cross multiply
    39,236.66x = 54,146.24 × 21,331.62
  4. Step 4: Simplify right side
    39,236.66x = 1,155,027,016.11
  5. Step 5: Solve for x
    x = 1,155,027,016.11/39,236.66
  6. Step 6: Final answer
    x = 29,437.44

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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.