Home / 21,882.46-30,198.38-13,384.44

Finding the Fourth Proportional to 21,882.46, 30,198.38 and 13,384.44

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Solution

The fourth proportional to 21,882.46, 30,198.38 and 13,384.44 is: 18,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.46 : 30,198.38 = 13,384.44 : x
  2. Step 2: Convert to fraction form
    21,882.46/30,198.38 = 13,384.44/x
  3. Step 3: Cross multiply
    21,882.46x = 30,198.38 × 13,384.44
  4. Step 4: Simplify right side
    21,882.46x = 404,188,405.21
  5. Step 5: Solve for x
    x = 404,188,405.21/21,882.46
  6. Step 6: Final answer
    x = 18,470.89

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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.