Home / 20,414.42-28,172.13-11,462.18

Finding the Fourth Proportional to 20,414.42, 28,172.13 and 11,462.18

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Solution

The fourth proportional to 20,414.42, 28,172.13 and 11,462.18 is: 15,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.42 : 28,172.13 = 11,462.18 : x
  2. Step 2: Convert to fraction form
    20,414.42/28,172.13 = 11,462.18/x
  3. Step 3: Cross multiply
    20,414.42x = 28,172.13 × 11,462.18
  4. Step 4: Simplify right side
    20,414.42x = 322,914,025.04
  5. Step 5: Solve for x
    x = 322,914,025.04/20,414.42
  6. Step 6: Final answer
    x = 15,817.94

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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.