Home / 22,080.32-30,469.92-12,649.76

Finding the Fourth Proportional to 22,080.32, 30,469.92 and 12,649.76

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Solution

The fourth proportional to 22,080.32, 30,469.92 and 12,649.76 is: 17,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080.32 : 30,469.92 = 12,649.76 : x
  2. Step 2: Convert to fraction form
    22,080.32/30,469.92 = 12,649.76/x
  3. Step 3: Cross multiply
    22,080.32x = 30,469.92 × 12,649.76
  4. Step 4: Simplify right side
    22,080.32x = 385,437,175.22
  5. Step 5: Solve for x
    x = 385,437,175.22/22,080.32
  6. Step 6: Final answer
    x = 17,456.14

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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.