Home / 19,940.68-29,900.13-8,247.52

Finding the Fourth Proportional to 19,940.68, 29,900.13 and 8,247.52

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Solution

The fourth proportional to 19,940.68, 29,900.13 and 8,247.52 is: 12,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.68 : 29,900.13 = 8,247.52 : x
  2. Step 2: Convert to fraction form
    19,940.68/29,900.13 = 8,247.52/x
  3. Step 3: Cross multiply
    19,940.68x = 29,900.13 × 8,247.52
  4. Step 4: Simplify right side
    19,940.68x = 246,601,920.18
  5. Step 5: Solve for x
    x = 246,601,920.18/19,940.68
  6. Step 6: Final answer
    x = 12,366.78

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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.