Home / 20,108.23-30,184.41-15,974.80

Finding the Fourth Proportional to 20,108.23, 30,184.41 and 15,974.80

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Solution

The fourth proportional to 20,108.23, 30,184.41 and 15,974.80 is: 23,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.23 : 30,184.41 = 15,974.80 : x
  2. Step 2: Convert to fraction form
    20,108.23/30,184.41 = 15,974.80/x
  3. Step 3: Cross multiply
    20,108.23x = 30,184.41 × 15,974.80
  4. Step 4: Simplify right side
    20,108.23x = 482,189,912.87
  5. Step 5: Solve for x
    x = 482,189,912.87/20,108.23
  6. Step 6: Final answer
    x = 23,979.73

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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.