Home / 23,255.55-34,872.66-12,729.15

Finding the Fourth Proportional to 23,255.55, 34,872.66 and 12,729.15

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Solution

The fourth proportional to 23,255.55, 34,872.66 and 12,729.15 is: 19,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,255.55 : 34,872.66 = 12,729.15 : x
  2. Step 2: Convert to fraction form
    23,255.55/34,872.66 = 12,729.15/x
  3. Step 3: Cross multiply
    23,255.55x = 34,872.66 × 12,729.15
  4. Step 4: Simplify right side
    23,255.55x = 443,899,320.04
  5. Step 5: Solve for x
    x = 443,899,320.04/23,255.55
  6. Step 6: Final answer
    x = 19,087.89

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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.