Home / 31,992.75-44,147.23-20,662.74

Finding the Fourth Proportional to 31,992.75, 44,147.23 and 20,662.74

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Solution

The fourth proportional to 31,992.75, 44,147.23 and 20,662.74 is: 28,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992.75 : 44,147.23 = 20,662.74 : x
  2. Step 2: Convert to fraction form
    31,992.75/44,147.23 = 20,662.74/x
  3. Step 3: Cross multiply
    31,992.75x = 44,147.23 × 20,662.74
  4. Step 4: Simplify right side
    31,992.75x = 912,202,683.55
  5. Step 5: Solve for x
    x = 912,202,683.55/31,992.75
  6. Step 6: Final answer
    x = 28,512.79

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Double scale
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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.