Home / 39,458.28-54,452.22-21,553.08

Finding the Fourth Proportional to 39,458.28, 54,452.22 and 21,553.08

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Solution

The fourth proportional to 39,458.28, 54,452.22 and 21,553.08 is: 29,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.28 : 54,452.22 = 21,553.08 : x
  2. Step 2: Convert to fraction form
    39,458.28/54,452.22 = 21,553.08/x
  3. Step 3: Cross multiply
    39,458.28x = 54,452.22 × 21,553.08
  4. Step 4: Simplify right side
    39,458.28x = 1,173,613,053.84
  5. Step 5: Solve for x
    x = 1,173,613,053.84/39,458.28
  6. Step 6: Final answer
    x = 29,743.14

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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.