Home / 39,943.63-55,121.88-22,039.39

Finding the Fourth Proportional to 39,943.63, 55,121.88 and 22,039.39

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Solution

The fourth proportional to 39,943.63, 55,121.88 and 22,039.39 is: 30,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.63 : 55,121.88 = 22,039.39 : x
  2. Step 2: Convert to fraction form
    39,943.63/55,121.88 = 22,039.39/x
  3. Step 3: Cross multiply
    39,943.63x = 55,121.88 × 22,039.39
  4. Step 4: Simplify right side
    39,943.63x = 1,214,852,610.85
  5. Step 5: Solve for x
    x = 1,214,852,610.85/39,943.63
  6. Step 6: Final answer
    x = 30,414.18

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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.