Home / 20,844.82-28,765.84-11,413.38

Finding the Fourth Proportional to 20,844.82, 28,765.84 and 11,413.38

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Solution

The fourth proportional to 20,844.82, 28,765.84 and 11,413.38 is: 15,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.82 : 28,765.84 = 11,413.38 : x
  2. Step 2: Convert to fraction form
    20,844.82/28,765.84 = 11,413.38/x
  3. Step 3: Cross multiply
    20,844.82x = 28,765.84 × 11,413.38
  4. Step 4: Simplify right side
    20,844.82x = 328,315,462.94
  5. Step 5: Solve for x
    x = 328,315,462.94/20,844.82
  6. Step 6: Final answer
    x = 15,750.46

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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.