Home / 40,385.97-60,591.35-20,678.37

Finding the Fourth Proportional to 40,385.97, 60,591.35 and 20,678.37

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Solution

The fourth proportional to 40,385.97, 60,591.35 and 20,678.37 is: 31,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.97 : 60,591.35 = 20,678.37 : x
  2. Step 2: Convert to fraction form
    40,385.97/60,591.35 = 20,678.37/x
  3. Step 3: Cross multiply
    40,385.97x = 60,591.35 × 20,678.37
  4. Step 4: Simplify right side
    40,385.97x = 1,252,930,354.10
  5. Step 5: Solve for x
    x = 1,252,930,354.10/40,385.97
  6. Step 6: Final answer
    x = 31,023.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.