Home / 20,198.50-27,876.09-11,822.02

Finding the Fourth Proportional to 20,198.50, 27,876.09 and 11,822.02

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Solution

The fourth proportional to 20,198.50, 27,876.09 and 11,822.02 is: 16,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.50 : 27,876.09 = 11,822.02 : x
  2. Step 2: Convert to fraction form
    20,198.50/27,876.09 = 11,822.02/x
  3. Step 3: Cross multiply
    20,198.50x = 27,876.09 × 11,822.02
  4. Step 4: Simplify right side
    20,198.50x = 329,551,693.50
  5. Step 5: Solve for x
    x = 329,551,693.50/20,198.50
  6. Step 6: Final answer
    x = 16,315.65

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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.