Home / 20,481.24-28,264.14-12,099.48

Finding the Fourth Proportional to 20,481.24, 28,264.14 and 12,099.48

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Solution

The fourth proportional to 20,481.24, 28,264.14 and 12,099.48 is: 16,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.24 : 28,264.14 = 12,099.48 : x
  2. Step 2: Convert to fraction form
    20,481.24/28,264.14 = 12,099.48/x
  3. Step 3: Cross multiply
    20,481.24x = 28,264.14 × 12,099.48
  4. Step 4: Simplify right side
    20,481.24x = 341,981,396.65
  5. Step 5: Solve for x
    x = 341,981,396.65/20,481.24
  6. Step 6: Final answer
    x = 16,697.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.