Home / 20,545.98-30,791.97-11,189.94

Finding the Fourth Proportional to 20,545.98, 30,791.97 and 11,189.94

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Solution

The fourth proportional to 20,545.98, 30,791.97 and 11,189.94 is: 16,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.98 : 30,791.97 = 11,189.94 : x
  2. Step 2: Convert to fraction form
    20,545.98/30,791.97 = 11,189.94/x
  3. Step 3: Cross multiply
    20,545.98x = 30,791.97 × 11,189.94
  4. Step 4: Simplify right side
    20,545.98x = 344,560,296.78
  5. Step 5: Solve for x
    x = 344,560,296.78/20,545.98
  6. Step 6: Final answer
    x = 16,770.21

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1.5x scale

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.