Home / 20,600.73-28,428.93-11,169.27

Finding the Fourth Proportional to 20,600.73, 28,428.93 and 11,169.27

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Solution

The fourth proportional to 20,600.73, 28,428.93 and 11,169.27 is: 15,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.73 : 28,428.93 = 11,169.27 : x
  2. Step 2: Convert to fraction form
    20,600.73/28,428.93 = 11,169.27/x
  3. Step 3: Cross multiply
    20,600.73x = 28,428.93 × 11,169.27
  4. Step 4: Simplify right side
    20,600.73x = 317,530,394.98
  5. Step 5: Solve for x
    x = 317,530,394.98/20,600.73
  6. Step 6: Final answer
    x = 15,413.55

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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.