Home / 21,314.25-29,413.67-11,882.61

Finding the Fourth Proportional to 21,314.25, 29,413.67 and 11,882.61

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Solution

The fourth proportional to 21,314.25, 29,413.67 and 11,882.61 is: 16,398.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.25 : 29,413.67 = 11,882.61 : x
  2. Step 2: Convert to fraction form
    21,314.25/29,413.67 = 11,882.61/x
  3. Step 3: Cross multiply
    21,314.25x = 29,413.67 × 11,882.61
  4. Step 4: Simplify right side
    21,314.25x = 349,511,109.87
  5. Step 5: Solve for x
    x = 349,511,109.87/21,314.25
  6. Step 6: Final answer
    x = 16,398.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.