Home / 27,408.78-41,114.79-8,688.47

Finding the Fourth Proportional to 27,408.78, 41,114.79 and 8,688.47

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Solution

The fourth proportional to 27,408.78, 41,114.79 and 8,688.47 is: 13,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,408.78 : 41,114.79 = 8,688.47 : x
  2. Step 2: Convert to fraction form
    27,408.78/41,114.79 = 8,688.47/x
  3. Step 3: Cross multiply
    27,408.78x = 41,114.79 × 8,688.47
  4. Step 4: Simplify right side
    27,408.78x = 357,224,413.90
  5. Step 5: Solve for x
    x = 357,224,413.90/27,408.78
  6. Step 6: Final answer
    x = 13,033.21

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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.