Home / 21,882.27-30,197.71-12,451.44

Finding the Fourth Proportional to 21,882.27, 30,197.71 and 12,451.44

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Solution

The fourth proportional to 21,882.27, 30,197.71 and 12,451.44 is: 17,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.27 : 30,197.71 = 12,451.44 : x
  2. Step 2: Convert to fraction form
    21,882.27/30,197.71 = 12,451.44/x
  3. Step 3: Cross multiply
    21,882.27x = 30,197.71 × 12,451.44
  4. Step 4: Simplify right side
    21,882.27x = 376,004,943.07
  5. Step 5: Solve for x
    x = 376,004,943.07/21,882.27
  6. Step 6: Final answer
    x = 17,183.09

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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.