Home / 20,908.44-28,854.42-12,414.96

Finding the Fourth Proportional to 20,908.44, 28,854.42 and 12,414.96

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Solution

The fourth proportional to 20,908.44, 28,854.42 and 12,414.96 is: 17,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.44 : 28,854.42 = 12,414.96 : x
  2. Step 2: Convert to fraction form
    20,908.44/28,854.42 = 12,414.96/x
  3. Step 3: Cross multiply
    20,908.44x = 28,854.42 × 12,414.96
  4. Step 4: Simplify right side
    20,908.44x = 358,226,470.12
  5. Step 5: Solve for x
    x = 358,226,470.12/20,908.44
  6. Step 6: Final answer
    x = 17,133.10

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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.