Home / 40,120.56-55,361.89-22,211.08

Finding the Fourth Proportional to 40,120.56, 55,361.89 and 22,211.08

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Solution

The fourth proportional to 40,120.56, 55,361.89 and 22,211.08 is: 30,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.56 : 55,361.89 = 22,211.08 : x
  2. Step 2: Convert to fraction form
    40,120.56/55,361.89 = 22,211.08/x
  3. Step 3: Cross multiply
    40,120.56x = 55,361.89 × 22,211.08
  4. Step 4: Simplify right side
    40,120.56x = 1,229,647,367.74
  5. Step 5: Solve for x
    x = 1,229,647,367.74/40,120.56
  6. Step 6: Final answer
    x = 30,648.81

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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.