Home / 15,531.82-23,278.28-12,231.88

Finding the Fourth Proportional to 15,531.82, 23,278.28 and 12,231.88

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Solution

The fourth proportional to 15,531.82, 23,278.28 and 12,231.88 is: 18,332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.82 : 23,278.28 = 12,231.88 : x
  2. Step 2: Convert to fraction form
    15,531.82/23,278.28 = 12,231.88/x
  3. Step 3: Cross multiply
    15,531.82x = 23,278.28 × 12,231.88
  4. Step 4: Simplify right side
    15,531.82x = 284,737,127.57
  5. Step 5: Solve for x
    x = 284,737,127.57/15,531.82
  6. Step 6: Final answer
    x = 18,332.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.