Home / 39,728.42-54,809.94-22,729.22

Finding the Fourth Proportional to 39,728.42, 54,809.94 and 22,729.22

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Solution

The fourth proportional to 39,728.42, 54,809.94 and 22,729.22 is: 31,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,728.42 : 54,809.94 = 22,729.22 : x
  2. Step 2: Convert to fraction form
    39,728.42/54,809.94 = 22,729.22/x
  3. Step 3: Cross multiply
    39,728.42x = 54,809.94 × 22,729.22
  4. Step 4: Simplify right side
    39,728.42x = 1,245,787,184.45
  5. Step 5: Solve for x
    x = 1,245,787,184.45/39,728.42
  6. Step 6: Final answer
    x = 31,357.58

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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.