Home / 20,085.14-27,717.72-11,132.82

Finding the Fourth Proportional to 20,085.14, 27,717.72 and 11,132.82

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Solution

The fourth proportional to 20,085.14, 27,717.72 and 11,132.82 is: 15,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.14 : 27,717.72 = 11,132.82 : x
  2. Step 2: Convert to fraction form
    20,085.14/27,717.72 = 11,132.82/x
  3. Step 3: Cross multiply
    20,085.14x = 27,717.72 × 11,132.82
  4. Step 4: Simplify right side
    20,085.14x = 308,576,387.57
  5. Step 5: Solve for x
    x = 308,576,387.57/20,085.14
  6. Step 6: Final answer
    x = 15,363.42

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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.