Home / 39,449.90-54,441.82-21,544.76

Finding the Fourth Proportional to 39,449.90, 54,441.82 and 21,544.76

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Solution

The fourth proportional to 39,449.90, 54,441.82 and 21,544.76 is: 29,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.90 : 54,441.82 = 21,544.76 : x
  2. Step 2: Convert to fraction form
    39,449.90/54,441.82 = 21,544.76/x
  3. Step 3: Cross multiply
    39,449.90x = 54,441.82 × 21,544.76
  4. Step 4: Simplify right side
    39,449.90x = 1,172,935,945.86
  5. Step 5: Solve for x
    x = 1,172,935,945.86/39,449.90
  6. Step 6: Final answer
    x = 29,732.29

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Half scale
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Double scale
Find fourth proportional to 39,450.90, 54,443.20 and 21,545.76
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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.