Home / 18,091.56-27,138.32-4,942.32

Finding the Fourth Proportional to 18,091.56, 27,138.32 and 4,942.32

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Solution

The fourth proportional to 18,091.56, 27,138.32 and 4,942.32 is: 7,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.56 : 27,138.32 = 4,942.32 : x
  2. Step 2: Convert to fraction form
    18,091.56/27,138.32 = 4,942.32/x
  3. Step 3: Cross multiply
    18,091.56x = 27,138.32 × 4,942.32
  4. Step 4: Simplify right side
    18,091.56x = 134,126,261.70
  5. Step 5: Solve for x
    x = 134,126,261.70/18,091.56
  6. Step 6: Final answer
    x = 7,413.75

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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.