Home / 20,517.73-30,776.60-15,844.57

Finding the Fourth Proportional to 20,517.73, 30,776.60 and 15,844.57

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Solution

The fourth proportional to 20,517.73, 30,776.60 and 15,844.57 is: 23,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.73 : 30,776.60 = 15,844.57 : x
  2. Step 2: Convert to fraction form
    20,517.73/30,776.60 = 15,844.57/x
  3. Step 3: Cross multiply
    20,517.73x = 30,776.60 × 15,844.57
  4. Step 4: Simplify right side
    20,517.73x = 487,641,993.06
  5. Step 5: Solve for x
    x = 487,641,993.06/20,517.73
  6. Step 6: Final answer
    x = 23,766.86

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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.