Home / 26,912.44-40,378.91-12,117.96

Finding the Fourth Proportional to 26,912.44, 40,378.91 and 12,117.96

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Solution

The fourth proportional to 26,912.44, 40,378.91 and 12,117.96 is: 18,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.44 : 40,378.91 = 12,117.96 : x
  2. Step 2: Convert to fraction form
    26,912.44/40,378.91 = 12,117.96/x
  3. Step 3: Cross multiply
    26,912.44x = 40,378.91 × 12,117.96
  4. Step 4: Simplify right side
    26,912.44x = 489,310,016.22
  5. Step 5: Solve for x
    x = 489,310,016.22/26,912.44
  6. Step 6: Final answer
    x = 18,181.56

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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.