Home / 39,943.94-55,122.32-22,039.70

Finding the Fourth Proportional to 39,943.94, 55,122.32 and 22,039.70

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Solution

The fourth proportional to 39,943.94, 55,122.32 and 22,039.70 is: 30,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.94 : 55,122.32 = 22,039.70 : x
  2. Step 2: Convert to fraction form
    39,943.94/55,122.32 = 22,039.70/x
  3. Step 3: Cross multiply
    39,943.94x = 55,122.32 × 22,039.70
  4. Step 4: Simplify right side
    39,943.94x = 1,214,879,175.59
  5. Step 5: Solve for x
    x = 1,214,879,175.59/39,943.94
  6. Step 6: Final answer
    x = 30,414.61

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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.