Home / 36,221.90-49,987.26-20,306.61

Finding the Fourth Proportional to 36,221.90, 49,987.26 and 20,306.61

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Solution

The fourth proportional to 36,221.90, 49,987.26 and 20,306.61 is: 28,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.90 : 49,987.26 = 20,306.61 : x
  2. Step 2: Convert to fraction form
    36,221.90/49,987.26 = 20,306.61/x
  3. Step 3: Cross multiply
    36,221.90x = 49,987.26 × 20,306.61
  4. Step 4: Simplify right side
    36,221.90x = 1,015,071,793.79
  5. Step 5: Solve for x
    x = 1,015,071,793.79/36,221.90
  6. Step 6: Final answer
    x = 28,023.71

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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.