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Finding the Fourth Proportional to 39,157.25, 54,036.39 and 21,252.10

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Solution

The fourth proportional to 39,157.25, 54,036.39 and 21,252.10 is: 29,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.25 : 54,036.39 = 21,252.10 : x
  2. Step 2: Convert to fraction form
    39,157.25/54,036.39 = 21,252.10/x
  3. Step 3: Cross multiply
    39,157.25x = 54,036.39 × 21,252.10
  4. Step 4: Simplify right side
    39,157.25x = 1,148,386,763.92
  5. Step 5: Solve for x
    x = 1,148,386,763.92/39,157.25
  6. Step 6: Final answer
    x = 29,327.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.