Home / 20,499.26-30,758.61-12,195.68

Finding the Fourth Proportional to 20,499.26, 30,758.61 and 12,195.68

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Solution

The fourth proportional to 20,499.26, 30,758.61 and 12,195.68 is: 18,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.26 : 30,758.61 = 12,195.68 : x
  2. Step 2: Convert to fraction form
    20,499.26/30,758.61 = 12,195.68/x
  3. Step 3: Cross multiply
    20,499.26x = 30,758.61 × 12,195.68
  4. Step 4: Simplify right side
    20,499.26x = 375,122,164.80
  5. Step 5: Solve for x
    x = 375,122,164.80/20,499.26
  6. Step 6: Final answer
    x = 18,299.30

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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.