Home / 40,451.49-60,680.31-13,789.20

Finding the Fourth Proportional to 40,451.49, 60,680.31 and 13,789.20

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Solution

The fourth proportional to 40,451.49, 60,680.31 and 13,789.20 is: 20,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,451.49 : 60,680.31 = 13,789.20 : x
  2. Step 2: Convert to fraction form
    40,451.49/60,680.31 = 13,789.20/x
  3. Step 3: Cross multiply
    40,451.49x = 60,680.31 × 13,789.20
  4. Step 4: Simplify right side
    40,451.49x = 836,732,930.65
  5. Step 5: Solve for x
    x = 836,732,930.65/40,451.49
  6. Step 6: Final answer
    x = 20,684.85

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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.