Home / 40,816.80-61,218-11,227.44

Finding the Fourth Proportional to 40,816.80, 61,218 and 11,227.44

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Solution

The fourth proportional to 40,816.80, 61,218 and 11,227.44 is: 16,839.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,816.80 : 61,218 = 11,227.44 : x
  2. Step 2: Convert to fraction form
    40,816.80/61,218 = 11,227.44/x
  3. Step 3: Cross multiply
    40,816.80x = 61,218 × 11,227.44
  4. Step 4: Simplify right side
    40,816.80x = 687,321,421.92
  5. Step 5: Solve for x
    x = 687,321,421.92/40,816.80
  6. Step 6: Final answer
    x = 16,839.18

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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.