Home / 22,552.43-31,121.62-12,480.68

Finding the Fourth Proportional to 22,552.43, 31,121.62 and 12,480.68

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Solution

The fourth proportional to 22,552.43, 31,121.62 and 12,480.68 is: 17,222.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,552.43 : 31,121.62 = 12,480.68 : x
  2. Step 2: Convert to fraction form
    22,552.43/31,121.62 = 12,480.68/x
  3. Step 3: Cross multiply
    22,552.43x = 31,121.62 × 12,480.68
  4. Step 4: Simplify right side
    22,552.43x = 388,419,026.90
  5. Step 5: Solve for x
    x = 388,419,026.90/22,552.43
  6. Step 6: Final answer
    x = 17,222.94

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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.