Home / 20,198.30-30,298.90-6,348.38

Finding the Fourth Proportional to 20,198.30, 30,298.90 and 6,348.38

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Solution

The fourth proportional to 20,198.30, 30,298.90 and 6,348.38 is: 9,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.30 : 30,298.90 = 6,348.38 : x
  2. Step 2: Convert to fraction form
    20,198.30/30,298.90 = 6,348.38/x
  3. Step 3: Cross multiply
    20,198.30x = 30,298.90 × 6,348.38
  4. Step 4: Simplify right side
    20,198.30x = 192,348,930.78
  5. Step 5: Solve for x
    x = 192,348,930.78/20,198.30
  6. Step 6: Final answer
    x = 9,523.03

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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.