Home / 20,414.15-28,174.61-12,460.99

Finding the Fourth Proportional to 20,414.15, 28,174.61 and 12,460.99

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Solution

The fourth proportional to 20,414.15, 28,174.61 and 12,460.99 is: 17,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.15 : 28,174.61 = 12,460.99 : x
  2. Step 2: Convert to fraction form
    20,414.15/28,174.61 = 12,460.99/x
  3. Step 3: Cross multiply
    20,414.15x = 28,174.61 × 12,460.99
  4. Step 4: Simplify right side
    20,414.15x = 351,083,330.29
  5. Step 5: Solve for x
    x = 351,083,330.29/20,414.15
  6. Step 6: Final answer
    x = 17,198.04

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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.