Home / 20,146.30-30,229.80-15,245.98

Finding the Fourth Proportional to 20,146.30, 30,229.80 and 15,245.98

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Solution

The fourth proportional to 20,146.30, 30,229.80 and 15,245.98 is: 22,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.30 : 30,229.80 = 15,245.98 : x
  2. Step 2: Convert to fraction form
    20,146.30/30,229.80 = 15,245.98/x
  3. Step 3: Cross multiply
    20,146.30x = 30,229.80 × 15,245.98
  4. Step 4: Simplify right side
    20,146.30x = 460,882,926.20
  5. Step 5: Solve for x
    x = 460,882,926.20/20,146.30
  6. Step 6: Final answer
    x = 22,876.80

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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.