Home / 19,932.87-29,900.76-8,080.95

Finding the Fourth Proportional to 19,932.87, 29,900.76 and 8,080.95

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Solution

The fourth proportional to 19,932.87, 29,900.76 and 8,080.95 is: 12,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.87 : 29,900.76 = 8,080.95 : x
  2. Step 2: Convert to fraction form
    19,932.87/29,900.76 = 8,080.95/x
  3. Step 3: Cross multiply
    19,932.87x = 29,900.76 × 8,080.95
  4. Step 4: Simplify right side
    19,932.87x = 241,626,546.52
  5. Step 5: Solve for x
    x = 241,626,546.52/19,932.87
  6. Step 6: Final answer
    x = 12,122.01

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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.