Home / 40,680.62-61,009.15-12,216.42

Finding the Fourth Proportional to 40,680.62, 61,009.15 and 12,216.42

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Solution

The fourth proportional to 40,680.62, 61,009.15 and 12,216.42 is: 18,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,680.62 : 61,009.15 = 12,216.42 : x
  2. Step 2: Convert to fraction form
    40,680.62/61,009.15 = 12,216.42/x
  3. Step 3: Cross multiply
    40,680.62x = 61,009.15 × 12,216.42
  4. Step 4: Simplify right side
    40,680.62x = 745,313,491.68
  5. Step 5: Solve for x
    x = 745,313,491.68/40,680.62
  6. Step 6: Final answer
    x = 18,321.10

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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.