Home / 20,775.92-31,163.94-5,193.54

Finding the Fourth Proportional to 20,775.92, 31,163.94 and 5,193.54

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Solution

The fourth proportional to 20,775.92, 31,163.94 and 5,193.54 is: 7,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.92 : 31,163.94 = 5,193.54 : x
  2. Step 2: Convert to fraction form
    20,775.92/31,163.94 = 5,193.54/x
  3. Step 3: Cross multiply
    20,775.92x = 31,163.94 × 5,193.54
  4. Step 4: Simplify right side
    20,775.92x = 161,851,168.95
  5. Step 5: Solve for x
    x = 161,851,168.95/20,775.92
  6. Step 6: Final answer
    x = 7,790.33

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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.