Home / 20,084.14-27,714.31-11,129.29

Finding the Fourth Proportional to 20,084.14, 27,714.31 and 11,129.29

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Solution

The fourth proportional to 20,084.14, 27,714.31 and 11,129.29 is: 15,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.14 : 27,714.31 = 11,129.29 : x
  2. Step 2: Convert to fraction form
    20,084.14/27,714.31 = 11,129.29/x
  3. Step 3: Cross multiply
    20,084.14x = 27,714.31 × 11,129.29
  4. Step 4: Simplify right side
    20,084.14x = 308,440,593.14
  5. Step 5: Solve for x
    x = 308,440,593.14/20,084.14
  6. Step 6: Final answer
    x = 15,357.42

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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.