Home / 20,120.00-27,764.26-12,166.61

Finding the Fourth Proportional to 20,120.00, 27,764.26 and 12,166.61

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Solution

The fourth proportional to 20,120.00, 27,764.26 and 12,166.61 is: 16,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.00 : 27,764.26 = 12,166.61 : x
  2. Step 2: Convert to fraction form
    20,120.00/27,764.26 = 12,166.61/x
  3. Step 3: Cross multiply
    20,120.00x = 27,764.26 × 12,166.61
  4. Step 4: Simplify right side
    20,120.00x = 337,796,962.35
  5. Step 5: Solve for x
    x = 337,796,962.35/20,120.00
  6. Step 6: Final answer
    x = 16,789.11

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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.