Home / 20,174.72-27,836.92-11,789.60

Finding the Fourth Proportional to 20,174.72, 27,836.92 and 11,789.60

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Solution

The fourth proportional to 20,174.72, 27,836.92 and 11,789.60 is: 16,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.72 : 27,836.92 = 11,789.60 : x
  2. Step 2: Convert to fraction form
    20,174.72/27,836.92 = 11,789.60/x
  3. Step 3: Cross multiply
    20,174.72x = 27,836.92 × 11,789.60
  4. Step 4: Simplify right side
    20,174.72x = 328,186,152.03
  5. Step 5: Solve for x
    x = 328,186,152.03/20,174.72
  6. Step 6: Final answer
    x = 16,267.20

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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.