Home / 20,080.85-27,714.56-11,581.38

Finding the Fourth Proportional to 20,080.85, 27,714.56 and 11,581.38

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Solution

The fourth proportional to 20,080.85, 27,714.56 and 11,581.38 is: 15,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.85 : 27,714.56 = 11,581.38 : x
  2. Step 2: Convert to fraction form
    20,080.85/27,714.56 = 11,581.38/x
  3. Step 3: Cross multiply
    20,080.85x = 27,714.56 × 11,581.38
  4. Step 4: Simplify right side
    20,080.85x = 320,972,792.99
  5. Step 5: Solve for x
    x = 320,972,792.99/20,080.85
  6. Step 6: Final answer
    x = 15,984.03

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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.