Home / 36,456.11-54,684.18-20,862.80

Finding the Fourth Proportional to 36,456.11, 54,684.18 and 20,862.80

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Solution

The fourth proportional to 36,456.11, 54,684.18 and 20,862.80 is: 31,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,456.11 : 54,684.18 = 20,862.80 : x
  2. Step 2: Convert to fraction form
    36,456.11/54,684.18 = 20,862.80/x
  3. Step 3: Cross multiply
    36,456.11x = 54,684.18 × 20,862.80
  4. Step 4: Simplify right side
    36,456.11x = 1,140,864,837.08
  5. Step 5: Solve for x
    x = 1,140,864,837.08/36,456.11
  6. Step 6: Final answer
    x = 31,294.21

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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.