Home / 40,385.97-60,591.35-20,678.36

Finding the Fourth Proportional to 40,385.97, 60,591.35 and 20,678.36

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Solution

The fourth proportional to 40,385.97, 60,591.35 and 20,678.36 is: 31,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.97 : 60,591.35 = 20,678.36 : x
  2. Step 2: Convert to fraction form
    40,385.97/60,591.35 = 20,678.36/x
  3. Step 3: Cross multiply
    40,385.97x = 60,591.35 × 20,678.36
  4. Step 4: Simplify right side
    40,385.97x = 1,252,929,748.19
  5. Step 5: Solve for x
    x = 1,252,929,748.19/40,385.97
  6. Step 6: Final answer
    x = 31,023.89

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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.