Home / 20,545.26-28,352.34-11,113.62

Finding the Fourth Proportional to 20,545.26, 28,352.34 and 11,113.62

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Solution

The fourth proportional to 20,545.26, 28,352.34 and 11,113.62 is: 15,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.26 : 28,352.34 = 11,113.62 : x
  2. Step 2: Convert to fraction form
    20,545.26/28,352.34 = 11,113.62/x
  3. Step 3: Cross multiply
    20,545.26x = 28,352.34 × 11,113.62
  4. Step 4: Simplify right side
    20,545.26x = 315,097,132.87
  5. Step 5: Solve for x
    x = 315,097,132.87/20,545.26
  6. Step 6: Final answer
    x = 15,336.73

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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.