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Finding the Fourth Proportional to 25,891.67, 38,753.97 and 13,394.48

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Solution

The fourth proportional to 25,891.67, 38,753.97 and 13,394.48 is: 20,048.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.67 : 38,753.97 = 13,394.48 : x
  2. Step 2: Convert to fraction form
    25,891.67/38,753.97 = 13,394.48/x
  3. Step 3: Cross multiply
    25,891.67x = 38,753.97 × 13,394.48
  4. Step 4: Simplify right side
    25,891.67x = 519,089,209.11
  5. Step 5: Solve for x
    x = 519,089,209.11/25,891.67
  6. Step 6: Final answer
    x = 20,048.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.