Home / 20,545.68-28,352.97-11,114.25

Finding the Fourth Proportional to 20,545.68, 28,352.97 and 11,114.25

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Solution

The fourth proportional to 20,545.68, 28,352.97 and 11,114.25 is: 15,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.68 : 28,352.97 = 11,114.25 : x
  2. Step 2: Convert to fraction form
    20,545.68/28,352.97 = 11,114.25/x
  3. Step 3: Cross multiply
    20,545.68x = 28,352.97 × 11,114.25
  4. Step 4: Simplify right side
    20,545.68x = 315,121,890.50
  5. Step 5: Solve for x
    x = 315,121,890.50/20,545.68
  6. Step 6: Final answer
    x = 15,337.62

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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.