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Finding the Fourth Proportional to 27,608.70, 41,413.41 and 7,887.90

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Solution

The fourth proportional to 27,608.70, 41,413.41 and 7,887.90 is: 11,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,608.70 : 41,413.41 = 7,887.90 : x
  2. Step 2: Convert to fraction form
    27,608.70/41,413.41 = 7,887.90/x
  3. Step 3: Cross multiply
    27,608.70x = 41,413.41 × 7,887.90
  4. Step 4: Simplify right side
    27,608.70x = 326,664,836.74
  5. Step 5: Solve for x
    x = 326,664,836.74/27,608.70
  6. Step 6: Final answer
    x = 11,831.95

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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.