Home / 39,402.31-54,375.20-25,255.15

Finding the Fourth Proportional to 39,402.31, 54,375.20 and 25,255.15

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Solution

The fourth proportional to 39,402.31, 54,375.20 and 25,255.15 is: 34,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.31 : 54,375.20 = 25,255.15 : x
  2. Step 2: Convert to fraction form
    39,402.31/54,375.20 = 25,255.15/x
  3. Step 3: Cross multiply
    39,402.31x = 54,375.20 × 25,255.15
  4. Step 4: Simplify right side
    39,402.31x = 1,373,253,832.28
  5. Step 5: Solve for x
    x = 1,373,253,832.28/39,402.31
  6. Step 6: Final answer
    x = 34,852.11

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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.