Home / 20,767.74-31,169.34-8,296.56

Finding the Fourth Proportional to 20,767.74, 31,169.34 and 8,296.56

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Solution

The fourth proportional to 20,767.74, 31,169.34 and 8,296.56 is: 12,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.74 : 31,169.34 = 8,296.56 : x
  2. Step 2: Convert to fraction form
    20,767.74/31,169.34 = 8,296.56/x
  3. Step 3: Cross multiply
    20,767.74x = 31,169.34 × 8,296.56
  4. Step 4: Simplify right side
    20,767.74x = 258,598,299.47
  5. Step 5: Solve for x
    x = 258,598,299.47/20,767.74
  6. Step 6: Final answer
    x = 12,451.92

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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.