Home / 21,882.17-30,198.09-12,451.34

Finding the Fourth Proportional to 21,882.17, 30,198.09 and 12,451.34

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Solution

The fourth proportional to 21,882.17, 30,198.09 and 12,451.34 is: 17,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.17 : 30,198.09 = 12,451.34 : x
  2. Step 2: Convert to fraction form
    21,882.17/30,198.09 = 12,451.34/x
  3. Step 3: Cross multiply
    21,882.17x = 30,198.09 × 12,451.34
  4. Step 4: Simplify right side
    21,882.17x = 376,006,685.94
  5. Step 5: Solve for x
    x = 376,006,685.94/21,882.17
  6. Step 6: Final answer
    x = 17,183.24

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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.