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Finding the Fourth Proportional to 39,452, 54,429.60 and 23,315.88

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Solution

The fourth proportional to 39,452, 54,429.60 and 23,315.88 is: 32,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,452 : 54,429.60 = 23,315.88 : x
  2. Step 2: Convert to fraction form
    39,452/54,429.60 = 23,315.88/x
  3. Step 3: Cross multiply
    39,452x = 54,429.60 × 23,315.88
  4. Step 4: Simplify right side
    39,452x = 1,269,074,022.05
  5. Step 5: Solve for x
    x = 1,269,074,022.05/39,452
  6. Step 6: Final answer
    x = 32,167.55

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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.