Home / 20,766.44-31,148.57-5,974.79

Finding the Fourth Proportional to 20,766.44, 31,148.57 and 5,974.79

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Solution

The fourth proportional to 20,766.44, 31,148.57 and 5,974.79 is: 8,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.44 : 31,148.57 = 5,974.79 : x
  2. Step 2: Convert to fraction form
    20,766.44/31,148.57 = 5,974.79/x
  3. Step 3: Cross multiply
    20,766.44x = 31,148.57 × 5,974.79
  4. Step 4: Simplify right side
    20,766.44x = 186,105,978.93
  5. Step 5: Solve for x
    x = 186,105,978.93/20,766.44
  6. Step 6: Final answer
    x = 8,961.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.