Home / 20,414.75-28,172.14-11,462.04

Finding the Fourth Proportional to 20,414.75, 28,172.14 and 11,462.04

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Solution

The fourth proportional to 20,414.75, 28,172.14 and 11,462.04 is: 15,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.75 : 28,172.14 = 11,462.04 : x
  2. Step 2: Convert to fraction form
    20,414.75/28,172.14 = 11,462.04/x
  3. Step 3: Cross multiply
    20,414.75x = 28,172.14 × 11,462.04
  4. Step 4: Simplify right side
    20,414.75x = 322,910,166.91
  5. Step 5: Solve for x
    x = 322,910,166.91/20,414.75
  6. Step 6: Final answer
    x = 15,817.50

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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.