Home / 39,230.01-54,136.28-21,324.56

Finding the Fourth Proportional to 39,230.01, 54,136.28 and 21,324.56

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Solution

The fourth proportional to 39,230.01, 54,136.28 and 21,324.56 is: 29,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.01 : 54,136.28 = 21,324.56 : x
  2. Step 2: Convert to fraction form
    39,230.01/54,136.28 = 21,324.56/x
  3. Step 3: Cross multiply
    39,230.01x = 54,136.28 × 21,324.56
  4. Step 4: Simplify right side
    39,230.01x = 1,154,431,973.73
  5. Step 5: Solve for x
    x = 1,154,431,973.73/39,230.01
  6. Step 6: Final answer
    x = 29,427.27

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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.