Home / 39,458.14-54,451.33-21,553.22

Finding the Fourth Proportional to 39,458.14, 54,451.33 and 21,553.22

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Solution

The fourth proportional to 39,458.14, 54,451.33 and 21,553.22 is: 29,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.14 : 54,451.33 = 21,553.22 : x
  2. Step 2: Convert to fraction form
    39,458.14/54,451.33 = 21,553.22/x
  3. Step 3: Cross multiply
    39,458.14x = 54,451.33 × 21,553.22
  4. Step 4: Simplify right side
    39,458.14x = 1,173,601,494.78
  5. Step 5: Solve for x
    x = 1,173,601,494.78/39,458.14
  6. Step 6: Final answer
    x = 29,742.95

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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.