Home / 27,766.11-38,318.15-15,190.86

Finding the Fourth Proportional to 27,766.11, 38,318.15 and 15,190.86

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Solution

The fourth proportional to 27,766.11, 38,318.15 and 15,190.86 is: 20,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,766.11 : 38,318.15 = 15,190.86 : x
  2. Step 2: Convert to fraction form
    27,766.11/38,318.15 = 15,190.86/x
  3. Step 3: Cross multiply
    27,766.11x = 38,318.15 × 15,190.86
  4. Step 4: Simplify right side
    27,766.11x = 582,085,576.15
  5. Step 5: Solve for x
    x = 582,085,576.15/27,766.11
  6. Step 6: Final answer
    x = 20,963.89

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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.