Home / 21,966.75-32,885.49-13,619.97

Finding the Fourth Proportional to 21,966.75, 32,885.49 and 13,619.97

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Solution

The fourth proportional to 21,966.75, 32,885.49 and 13,619.97 is: 20,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.75 : 32,885.49 = 13,619.97 : x
  2. Step 2: Convert to fraction form
    21,966.75/32,885.49 = 13,619.97/x
  3. Step 3: Cross multiply
    21,966.75x = 32,885.49 × 13,619.97
  4. Step 4: Simplify right side
    21,966.75x = 447,899,387.24
  5. Step 5: Solve for x
    x = 447,899,387.24/21,966.75
  6. Step 6: Final answer
    x = 20,389.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.