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Finding the Fourth Proportional to 25,398.41, 38,079.16 and 10,611.56

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Solution

The fourth proportional to 25,398.41, 38,079.16 and 10,611.56 is: 15,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.41 : 38,079.16 = 10,611.56 : x
  2. Step 2: Convert to fraction form
    25,398.41/38,079.16 = 10,611.56/x
  3. Step 3: Cross multiply
    25,398.41x = 38,079.16 × 10,611.56
  4. Step 4: Simplify right side
    25,398.41x = 404,079,205.25
  5. Step 5: Solve for x
    x = 404,079,205.25/25,398.41
  6. Step 6: Final answer
    x = 15,909.63

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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.