Home / 47,969.15-71,912.67-18,408.20

Finding the Fourth Proportional to 47,969.15, 71,912.67 and 18,408.20

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Solution

The fourth proportional to 47,969.15, 71,912.67 and 18,408.20 is: 27,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,969.15 : 71,912.67 = 18,408.20 : x
  2. Step 2: Convert to fraction form
    47,969.15/71,912.67 = 18,408.20/x
  3. Step 3: Cross multiply
    47,969.15x = 71,912.67 × 18,408.20
  4. Step 4: Simplify right side
    47,969.15x = 1,323,782,452.33
  5. Step 5: Solve for x
    x = 1,323,782,452.33/47,969.15
  6. Step 6: Final answer
    x = 27,596.54

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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.