Home / 39,517.59-54,532.26-21,609.12

Finding the Fourth Proportional to 39,517.59, 54,532.26 and 21,609.12

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Solution

The fourth proportional to 39,517.59, 54,532.26 and 21,609.12 is: 29,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.59 : 54,532.26 = 21,609.12 : x
  2. Step 2: Convert to fraction form
    39,517.59/54,532.26 = 21,609.12/x
  3. Step 3: Cross multiply
    39,517.59x = 54,532.26 × 21,609.12
  4. Step 4: Simplify right side
    39,517.59x = 1,178,394,150.21
  5. Step 5: Solve for x
    x = 1,178,394,150.21/39,517.59
  6. Step 6: Final answer
    x = 29,819.48

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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.