Home / 40,161.90-55,422-22,258.57

Finding the Fourth Proportional to 40,161.90, 55,422 and 22,258.57

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Solution

The fourth proportional to 40,161.90, 55,422 and 22,258.57 is: 30,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.90 : 55,422 = 22,258.57 : x
  2. Step 2: Convert to fraction form
    40,161.90/55,422 = 22,258.57/x
  3. Step 3: Cross multiply
    40,161.90x = 55,422 × 22,258.57
  4. Step 4: Simplify right side
    40,161.90x = 1,233,614,466.54
  5. Step 5: Solve for x
    x = 1,233,614,466.54/40,161.90
  6. Step 6: Final answer
    x = 30,716.04

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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.