Home / 20,844.43-28,765.74-11,413.06

Finding the Fourth Proportional to 20,844.43, 28,765.74 and 11,413.06

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Solution

The fourth proportional to 20,844.43, 28,765.74 and 11,413.06 is: 15,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.43 : 28,765.74 = 11,413.06 : x
  2. Step 2: Convert to fraction form
    20,844.43/28,765.74 = 11,413.06/x
  3. Step 3: Cross multiply
    20,844.43x = 28,765.74 × 11,413.06
  4. Step 4: Simplify right side
    20,844.43x = 328,305,116.56
  5. Step 5: Solve for x
    x = 328,305,116.56/20,844.43
  6. Step 6: Final answer
    x = 15,750.26

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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.