Home / 20,084.16-27,715.38-11,131.44

Finding the Fourth Proportional to 20,084.16, 27,715.38 and 11,131.44

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Solution

The fourth proportional to 20,084.16, 27,715.38 and 11,131.44 is: 15,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.16 : 27,715.38 = 11,131.44 : x
  2. Step 2: Convert to fraction form
    20,084.16/27,715.38 = 11,131.44/x
  3. Step 3: Cross multiply
    20,084.16x = 27,715.38 × 11,131.44
  4. Step 4: Simplify right side
    20,084.16x = 308,512,089.55
  5. Step 5: Solve for x
    x = 308,512,089.55/20,084.16
  6. Step 6: Final answer
    x = 15,360.97

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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.