Home / 27,881.20-41,765.10-17,318.80

Finding the Fourth Proportional to 27,881.20, 41,765.10 and 17,318.80

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Solution

The fourth proportional to 27,881.20, 41,765.10 and 17,318.80 is: 25,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.20 : 41,765.10 = 17,318.80 : x
  2. Step 2: Convert to fraction form
    27,881.20/41,765.10 = 17,318.80/x
  3. Step 3: Cross multiply
    27,881.20x = 41,765.10 × 17,318.80
  4. Step 4: Simplify right side
    27,881.20x = 723,321,413.88
  5. Step 5: Solve for x
    x = 723,321,413.88/27,881.20
  6. Step 6: Final answer
    x = 25,942.98

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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.