Home / 20,777.92-31,166.94-5,195.54

Finding the Fourth Proportional to 20,777.92, 31,166.94 and 5,195.54

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Solution

The fourth proportional to 20,777.92, 31,166.94 and 5,195.54 is: 7,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.92 : 31,166.94 = 5,195.54 : x
  2. Step 2: Convert to fraction form
    20,777.92/31,166.94 = 5,195.54/x
  3. Step 3: Cross multiply
    20,777.92x = 31,166.94 × 5,195.54
  4. Step 4: Simplify right side
    20,777.92x = 161,929,083.45
  5. Step 5: Solve for x
    x = 161,929,083.45/20,777.92
  6. Step 6: Final answer
    x = 7,793.33

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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.