Home / 20,747.11-28,633.43-11,795.95

Finding the Fourth Proportional to 20,747.11, 28,633.43 and 11,795.95

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Solution

The fourth proportional to 20,747.11, 28,633.43 and 11,795.95 is: 16,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.11 : 28,633.43 = 11,795.95 : x
  2. Step 2: Convert to fraction form
    20,747.11/28,633.43 = 11,795.95/x
  3. Step 3: Cross multiply
    20,747.11x = 28,633.43 × 11,795.95
  4. Step 4: Simplify right side
    20,747.11x = 337,758,529.66
  5. Step 5: Solve for x
    x = 337,758,529.66/20,747.11
  6. Step 6: Final answer
    x = 16,279.79

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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.