Home / 20,097.19-27,732.31-11,144.67

Finding the Fourth Proportional to 20,097.19, 27,732.31 and 11,144.67

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Solution

The fourth proportional to 20,097.19, 27,732.31 and 11,144.67 is: 15,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.19 : 27,732.31 = 11,144.67 : x
  2. Step 2: Convert to fraction form
    20,097.19/27,732.31 = 11,144.67/x
  3. Step 3: Cross multiply
    20,097.19x = 27,732.31 × 11,144.67
  4. Step 4: Simplify right side
    20,097.19x = 309,067,248.90
  5. Step 5: Solve for x
    x = 309,067,248.90/20,097.19
  6. Step 6: Final answer
    x = 15,378.63

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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.