Home / 20,844.67-28,766.37-11,413.30

Finding the Fourth Proportional to 20,844.67, 28,766.37 and 11,413.30

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Solution

The fourth proportional to 20,844.67, 28,766.37 and 11,413.30 is: 15,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.67 : 28,766.37 = 11,413.30 : x
  2. Step 2: Convert to fraction form
    20,844.67/28,766.37 = 11,413.30/x
  3. Step 3: Cross multiply
    20,844.67x = 28,766.37 × 11,413.30
  4. Step 4: Simplify right side
    20,844.67x = 328,319,210.72
  5. Step 5: Solve for x
    x = 328,319,210.72/20,844.67
  6. Step 6: Final answer
    x = 15,750.75

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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.