Home / 21,413.27-29,549.12-11,982.44

Finding the Fourth Proportional to 21,413.27, 29,549.12 and 11,982.44

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Solution

The fourth proportional to 21,413.27, 29,549.12 and 11,982.44 is: 16,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.27 : 29,549.12 = 11,982.44 : x
  2. Step 2: Convert to fraction form
    21,413.27/29,549.12 = 11,982.44/x
  3. Step 3: Cross multiply
    21,413.27x = 29,549.12 × 11,982.44
  4. Step 4: Simplify right side
    21,413.27x = 354,070,349.80
  5. Step 5: Solve for x
    x = 354,070,349.80/21,413.27
  6. Step 6: Final answer
    x = 16,535.09

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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.