Home / 39,884.97-55,040.55-21,735.86

Finding the Fourth Proportional to 39,884.97, 55,040.55 and 21,735.86

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Solution

The fourth proportional to 39,884.97, 55,040.55 and 21,735.86 is: 29,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.97 : 55,040.55 = 21,735.86 : x
  2. Step 2: Convert to fraction form
    39,884.97/55,040.55 = 21,735.86/x
  3. Step 3: Cross multiply
    39,884.97x = 55,040.55 × 21,735.86
  4. Step 4: Simplify right side
    39,884.97x = 1,196,353,413.92
  5. Step 5: Solve for x
    x = 1,196,353,413.92/39,884.97
  6. Step 6: Final answer
    x = 29,995.09

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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.