Home / 39,458.28-54,452.76-21,553.44

Finding the Fourth Proportional to 39,458.28, 54,452.76 and 21,553.44

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Solution

The fourth proportional to 39,458.28, 54,452.76 and 21,553.44 is: 29,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.28 : 54,452.76 = 21,553.44 : x
  2. Step 2: Convert to fraction form
    39,458.28/54,452.76 = 21,553.44/x
  3. Step 3: Cross multiply
    39,458.28x = 54,452.76 × 21,553.44
  4. Step 4: Simplify right side
    39,458.28x = 1,173,644,295.49
  5. Step 5: Solve for x
    x = 1,173,644,295.49/39,458.28
  6. Step 6: Final answer
    x = 29,743.93

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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.