Home / 22,512.30-31,067.25-12,440.64

Finding the Fourth Proportional to 22,512.30, 31,067.25 and 12,440.64

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Solution

The fourth proportional to 22,512.30, 31,067.25 and 12,440.64 is: 17,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,512.30 : 31,067.25 = 12,440.64 : x
  2. Step 2: Convert to fraction form
    22,512.30/31,067.25 = 12,440.64/x
  3. Step 3: Cross multiply
    22,512.30x = 31,067.25 × 12,440.64
  4. Step 4: Simplify right side
    22,512.30x = 386,496,473.04
  5. Step 5: Solve for x
    x = 386,496,473.04/22,512.30
  6. Step 6: Final answer
    x = 17,168.24

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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.