Home / 20,844.68-28,766.34-11,413.44

Finding the Fourth Proportional to 20,844.68, 28,766.34 and 11,413.44

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Solution

The fourth proportional to 20,844.68, 28,766.34 and 11,413.44 is: 15,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.68 : 28,766.34 = 11,413.44 : x
  2. Step 2: Convert to fraction form
    20,844.68/28,766.34 = 11,413.44/x
  3. Step 3: Cross multiply
    20,844.68x = 28,766.34 × 11,413.44
  4. Step 4: Simplify right side
    20,844.68x = 328,322,895.61
  5. Step 5: Solve for x
    x = 328,322,895.61/20,844.68
  6. Step 6: Final answer
    x = 15,750.92

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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.