Home / 23,129.85-34,708.61-21,247.66

Finding the Fourth Proportional to 23,129.85, 34,708.61 and 21,247.66

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Solution

The fourth proportional to 23,129.85, 34,708.61 and 21,247.66 is: 31,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.85 : 34,708.61 = 21,247.66 : x
  2. Step 2: Convert to fraction form
    23,129.85/34,708.61 = 21,247.66/x
  3. Step 3: Cross multiply
    23,129.85x = 34,708.61 × 21,247.66
  4. Step 4: Simplify right side
    23,129.85x = 737,476,638.66
  5. Step 5: Solve for x
    x = 737,476,638.66/23,129.85
  6. Step 6: Final answer
    x = 31,884.20

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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.