Home / 20,517.03-28,294.70-13,447.35

Finding the Fourth Proportional to 20,517.03, 28,294.70 and 13,447.35

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Solution

The fourth proportional to 20,517.03, 28,294.70 and 13,447.35 is: 18,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.03 : 28,294.70 = 13,447.35 : x
  2. Step 2: Convert to fraction form
    20,517.03/28,294.70 = 13,447.35/x
  3. Step 3: Cross multiply
    20,517.03x = 28,294.70 × 13,447.35
  4. Step 4: Simplify right side
    20,517.03x = 380,488,592.57
  5. Step 5: Solve for x
    x = 380,488,592.57/20,517.03
  6. Step 6: Final answer
    x = 18,545.02

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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.