Home / 39,939.22-55,119.18-22,037.68

Finding the Fourth Proportional to 39,939.22, 55,119.18 and 22,037.68

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Solution

The fourth proportional to 39,939.22, 55,119.18 and 22,037.68 is: 30,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.22 : 55,119.18 = 22,037.68 : x
  2. Step 2: Convert to fraction form
    39,939.22/55,119.18 = 22,037.68/x
  3. Step 3: Cross multiply
    39,939.22x = 55,119.18 × 22,037.68
  4. Step 4: Simplify right side
    39,939.22x = 1,214,698,850.70
  5. Step 5: Solve for x
    x = 1,214,698,850.70/39,939.22
  6. Step 6: Final answer
    x = 30,413.68

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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.