Home / 39,229.56-54,135.48-21,324.24

Finding the Fourth Proportional to 39,229.56, 54,135.48 and 21,324.24

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Solution

The fourth proportional to 39,229.56, 54,135.48 and 21,324.24 is: 29,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.56 : 54,135.48 = 21,324.24 : x
  2. Step 2: Convert to fraction form
    39,229.56/54,135.48 = 21,324.24/x
  3. Step 3: Cross multiply
    39,229.56x = 54,135.48 × 21,324.24
  4. Step 4: Simplify right side
    39,229.56x = 1,154,397,968.04
  5. Step 5: Solve for x
    x = 1,154,397,968.04/39,229.56
  6. Step 6: Final answer
    x = 29,426.74

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Half scale
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Double scale
Find fourth proportional to 39,230.56, 54,136.86 and 21,325.24
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.