Home / 21,413.25-29,550.29-11,984.04

Finding the Fourth Proportional to 21,413.25, 29,550.29 and 11,984.04

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Solution

The fourth proportional to 21,413.25, 29,550.29 and 11,984.04 is: 16,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.25 : 29,550.29 = 11,984.04 : x
  2. Step 2: Convert to fraction form
    21,413.25/29,550.29 = 11,984.04/x
  3. Step 3: Cross multiply
    21,413.25x = 29,550.29 × 11,984.04
  4. Step 4: Simplify right side
    21,413.25x = 354,131,797.45
  5. Step 5: Solve for x
    x = 354,131,797.45/21,413.25
  6. Step 6: Final answer
    x = 16,537.98

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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.