Home / 21,922.14-30,252.60-12,491.22

Finding the Fourth Proportional to 21,922.14, 30,252.60 and 12,491.22

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Solution

The fourth proportional to 21,922.14, 30,252.60 and 12,491.22 is: 17,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.14 : 30,252.60 = 12,491.22 : x
  2. Step 2: Convert to fraction form
    21,922.14/30,252.60 = 12,491.22/x
  3. Step 3: Cross multiply
    21,922.14x = 30,252.60 × 12,491.22
  4. Step 4: Simplify right side
    21,922.14x = 377,891,882.17
  5. Step 5: Solve for x
    x = 377,891,882.17/21,922.14
  6. Step 6: Final answer
    x = 17,237.91

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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.