Home / 27,766.70-38,318.60-15,191.72

Finding the Fourth Proportional to 27,766.70, 38,318.60 and 15,191.72

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Solution

The fourth proportional to 27,766.70, 38,318.60 and 15,191.72 is: 20,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,766.70 : 38,318.60 = 15,191.72 : x
  2. Step 2: Convert to fraction form
    27,766.70/38,318.60 = 15,191.72/x
  3. Step 3: Cross multiply
    27,766.70x = 38,318.60 × 15,191.72
  4. Step 4: Simplify right side
    27,766.70x = 582,125,174.44
  5. Step 5: Solve for x
    x = 582,125,174.44/27,766.70
  6. Step 6: Final answer
    x = 20,964.87

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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.