Home / 20,143.52-27,796.64-11,638.97

Finding the Fourth Proportional to 20,143.52, 27,796.64 and 11,638.97

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Solution

The fourth proportional to 20,143.52, 27,796.64 and 11,638.97 is: 16,060.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.52 : 27,796.64 = 11,638.97 : x
  2. Step 2: Convert to fraction form
    20,143.52/27,796.64 = 11,638.97/x
  3. Step 3: Cross multiply
    20,143.52x = 27,796.64 × 11,638.97
  4. Step 4: Simplify right side
    20,143.52x = 323,524,149.18
  5. Step 5: Solve for x
    x = 323,524,149.18/20,143.52
  6. Step 6: Final answer
    x = 16,060.96

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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.