Home / 18,561.43-27,839.89-5,413.82

Finding the Fourth Proportional to 18,561.43, 27,839.89 and 5,413.82

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Solution

The fourth proportional to 18,561.43, 27,839.89 and 5,413.82 is: 8,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.43 : 27,839.89 = 5,413.82 : x
  2. Step 2: Convert to fraction form
    18,561.43/27,839.89 = 5,413.82/x
  3. Step 3: Cross multiply
    18,561.43x = 27,839.89 × 5,413.82
  4. Step 4: Simplify right side
    18,561.43x = 150,720,035.35
  5. Step 5: Solve for x
    x = 150,720,035.35/18,561.43
  6. Step 6: Final answer
    x = 8,120.06

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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.