Home / 20,083.62-27,714.64-11,131.27

Finding the Fourth Proportional to 20,083.62, 27,714.64 and 11,131.27

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Solution

The fourth proportional to 20,083.62, 27,714.64 and 11,131.27 is: 15,360.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.62 : 27,714.64 = 11,131.27 : x
  2. Step 2: Convert to fraction form
    20,083.62/27,714.64 = 11,131.27/x
  3. Step 3: Cross multiply
    20,083.62x = 27,714.64 × 11,131.27
  4. Step 4: Simplify right side
    20,083.62x = 308,499,140.79
  5. Step 5: Solve for x
    x = 308,499,140.79/20,083.62
  6. Step 6: Final answer
    x = 15,360.73

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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.