Home / 27,878.40-41,817.60-7,101.90

Finding the Fourth Proportional to 27,878.40, 41,817.60 and 7,101.90

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Solution

The fourth proportional to 27,878.40, 41,817.60 and 7,101.90 is: 10,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.40 : 41,817.60 = 7,101.90 : x
  2. Step 2: Convert to fraction form
    27,878.40/41,817.60 = 7,101.90/x
  3. Step 3: Cross multiply
    27,878.40x = 41,817.60 × 7,101.90
  4. Step 4: Simplify right side
    27,878.40x = 296,984,413.44
  5. Step 5: Solve for x
    x = 296,984,413.44/27,878.40
  6. Step 6: Final answer
    x = 10,652.85

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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.