Home / 22,522.20-31,078.96-12,449.64

Finding the Fourth Proportional to 22,522.20, 31,078.96 and 12,449.64

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Solution

The fourth proportional to 22,522.20, 31,078.96 and 12,449.64 is: 17,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,522.20 : 31,078.96 = 12,449.64 : x
  2. Step 2: Convert to fraction form
    22,522.20/31,078.96 = 12,449.64/x
  3. Step 3: Cross multiply
    22,522.20x = 31,078.96 × 12,449.64
  4. Step 4: Simplify right side
    22,522.20x = 386,921,863.57
  5. Step 5: Solve for x
    x = 386,921,863.57/22,522.20
  6. Step 6: Final answer
    x = 17,179.58

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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.