Home / 23,375.52-34,981.20-20,127.78

Finding the Fourth Proportional to 23,375.52, 34,981.20 and 20,127.78

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Solution

The fourth proportional to 23,375.52, 34,981.20 and 20,127.78 is: 30,120.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,375.52 : 34,981.20 = 20,127.78 : x
  2. Step 2: Convert to fraction form
    23,375.52/34,981.20 = 20,127.78/x
  3. Step 3: Cross multiply
    23,375.52x = 34,981.20 × 20,127.78
  4. Step 4: Simplify right side
    23,375.52x = 704,093,897.74
  5. Step 5: Solve for x
    x = 704,093,897.74/23,375.52
  6. Step 6: Final answer
    x = 30,120.99

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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.