Home / 38,909.12-54,057.08-38,442.56

Finding the Fourth Proportional to 38,909.12, 54,057.08 and 38,442.56

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Solution

The fourth proportional to 38,909.12, 54,057.08 and 38,442.56 is: 53,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,909.12 : 54,057.08 = 38,442.56 : x
  2. Step 2: Convert to fraction form
    38,909.12/54,057.08 = 38,442.56/x
  3. Step 3: Cross multiply
    38,909.12x = 54,057.08 × 38,442.56
  4. Step 4: Simplify right side
    38,909.12x = 2,078,092,541.32
  5. Step 5: Solve for x
    x = 2,078,092,541.32/38,909.12
  6. Step 6: Final answer
    x = 53,408.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.