Home / 20,084.72-27,715.91-11,132.14

Finding the Fourth Proportional to 20,084.72, 27,715.91 and 11,132.14

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Solution

The fourth proportional to 20,084.72, 27,715.91 and 11,132.14 is: 15,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.72 : 27,715.91 = 11,132.14 : x
  2. Step 2: Convert to fraction form
    20,084.72/27,715.91 = 11,132.14/x
  3. Step 3: Cross multiply
    20,084.72x = 27,715.91 × 11,132.14
  4. Step 4: Simplify right side
    20,084.72x = 308,537,265.40
  5. Step 5: Solve for x
    x = 308,537,265.40/20,084.72
  6. Step 6: Final answer
    x = 15,361.79

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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.