Home / 39,769.52-54,882.90-21,864.96

Finding the Fourth Proportional to 39,769.52, 54,882.90 and 21,864.96

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Solution

The fourth proportional to 39,769.52, 54,882.90 and 21,864.96 is: 30,174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.52 : 54,882.90 = 21,864.96 : x
  2. Step 2: Convert to fraction form
    39,769.52/54,882.90 = 21,864.96/x
  3. Step 3: Cross multiply
    39,769.52x = 54,882.90 × 21,864.96
  4. Step 4: Simplify right side
    39,769.52x = 1,200,012,413.18
  5. Step 5: Solve for x
    x = 1,200,012,413.18/39,769.52
  6. Step 6: Final answer
    x = 30,174.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.