Home / 20,516.53-28,294.01-13,446.85

Finding the Fourth Proportional to 20,516.53, 28,294.01 and 13,446.85

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Solution

The fourth proportional to 20,516.53, 28,294.01 and 13,446.85 is: 18,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.53 : 28,294.01 = 13,446.85 : x
  2. Step 2: Convert to fraction form
    20,516.53/28,294.01 = 13,446.85/x
  3. Step 3: Cross multiply
    20,516.53x = 28,294.01 × 13,446.85
  4. Step 4: Simplify right side
    20,516.53x = 380,465,166.90
  5. Step 5: Solve for x
    x = 380,465,166.90/20,516.53
  6. Step 6: Final answer
    x = 18,544.33

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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.