Home / 22,458.47-30,990.97-12,387.29

Finding the Fourth Proportional to 22,458.47, 30,990.97 and 12,387.29

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Solution

The fourth proportional to 22,458.47, 30,990.97 and 12,387.29 is: 17,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.47 : 30,990.97 = 12,387.29 : x
  2. Step 2: Convert to fraction form
    22,458.47/30,990.97 = 12,387.29/x
  3. Step 3: Cross multiply
    22,458.47x = 30,990.97 × 12,387.29
  4. Step 4: Simplify right side
    22,458.47x = 383,894,225.73
  5. Step 5: Solve for x
    x = 383,894,225.73/22,458.47
  6. Step 6: Final answer
    x = 17,093.51

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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.