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Finding the Fourth Proportional to 39,797.53, 54,919.41 and 21,892.52

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Solution

The fourth proportional to 39,797.53, 54,919.41 and 21,892.52 is: 30,211.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,797.53 : 54,919.41 = 21,892.52 : x
  2. Step 2: Convert to fraction form
    39,797.53/54,919.41 = 21,892.52/x
  3. Step 3: Cross multiply
    39,797.53x = 54,919.41 × 21,892.52
  4. Step 4: Simplify right side
    39,797.53x = 1,202,324,281.81
  5. Step 5: Solve for x
    x = 1,202,324,281.81/39,797.53
  6. Step 6: Final answer
    x = 30,211.03

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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.