Home / 36,781.29-55,113.62-20,957.13

Finding the Fourth Proportional to 36,781.29, 55,113.62 and 20,957.13

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Solution

The fourth proportional to 36,781.29, 55,113.62 and 20,957.13 is: 31,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.29 : 55,113.62 = 20,957.13 : x
  2. Step 2: Convert to fraction form
    36,781.29/55,113.62 = 20,957.13/x
  3. Step 3: Cross multiply
    36,781.29x = 55,113.62 × 20,957.13
  4. Step 4: Simplify right side
    36,781.29x = 1,155,023,194.32
  5. Step 5: Solve for x
    x = 1,155,023,194.32/36,781.29
  6. Step 6: Final answer
    x = 31,402.47

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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.