Home / 20,103.83-27,739.13-11,605.80

Finding the Fourth Proportional to 20,103.83, 27,739.13 and 11,605.80

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Solution

The fourth proportional to 20,103.83, 27,739.13 and 11,605.80 is: 16,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.83 : 27,739.13 = 11,605.80 : x
  2. Step 2: Convert to fraction form
    20,103.83/27,739.13 = 11,605.80/x
  3. Step 3: Cross multiply
    20,103.83x = 27,739.13 × 11,605.80
  4. Step 4: Simplify right side
    20,103.83x = 321,934,736.93
  5. Step 5: Solve for x
    x = 321,934,736.93/20,103.83
  6. Step 6: Final answer
    x = 16,013.61

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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.