Home / 20,545.42-28,352.56-11,592.70

Finding the Fourth Proportional to 20,545.42, 28,352.56 and 11,592.70

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Solution

The fourth proportional to 20,545.42, 28,352.56 and 11,592.70 is: 15,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.42 : 28,352.56 = 11,592.70 : x
  2. Step 2: Convert to fraction form
    20,545.42/28,352.56 = 11,592.70/x
  3. Step 3: Cross multiply
    20,545.42x = 28,352.56 × 11,592.70
  4. Step 4: Simplify right side
    20,545.42x = 328,682,722.31
  5. Step 5: Solve for x
    x = 328,682,722.31/20,545.42
  6. Step 6: Final answer
    x = 15,997.86

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1.5x scale

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.