Home / 20,366.74-28,103.25-11,413.54

Finding the Fourth Proportional to 20,366.74, 28,103.25 and 11,413.54

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Solution

The fourth proportional to 20,366.74, 28,103.25 and 11,413.54 is: 15,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.74 : 28,103.25 = 11,413.54 : x
  2. Step 2: Convert to fraction form
    20,366.74/28,103.25 = 11,413.54/x
  3. Step 3: Cross multiply
    20,366.74x = 28,103.25 × 11,413.54
  4. Step 4: Simplify right side
    20,366.74x = 320,757,568.01
  5. Step 5: Solve for x
    x = 320,757,568.01/20,366.74
  6. Step 6: Final answer
    x = 15,749.09

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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.