Home / 20,083.60-27,714.98-11,131.06

Finding the Fourth Proportional to 20,083.60, 27,714.98 and 11,131.06

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Solution

The fourth proportional to 20,083.60, 27,714.98 and 11,131.06 is: 15,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.60 : 27,714.98 = 11,131.06 : x
  2. Step 2: Convert to fraction form
    20,083.60/27,714.98 = 11,131.06/x
  3. Step 3: Cross multiply
    20,083.60x = 27,714.98 × 11,131.06
  4. Step 4: Simplify right side
    20,083.60x = 308,497,105.28
  5. Step 5: Solve for x
    x = 308,497,105.28/20,083.60
  6. Step 6: Final answer
    x = 15,360.65

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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.