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Finding the Fourth Proportional to 25,825.62, 35,651.16 and 19,855.20

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Solution

The fourth proportional to 25,825.62, 35,651.16 and 19,855.20 is: 27,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.62 : 35,651.16 = 19,855.20 : x
  2. Step 2: Convert to fraction form
    25,825.62/35,651.16 = 19,855.20/x
  3. Step 3: Cross multiply
    25,825.62x = 35,651.16 × 19,855.20
  4. Step 4: Simplify right side
    25,825.62x = 707,860,912.03
  5. Step 5: Solve for x
    x = 707,860,912.03/25,825.62
  6. Step 6: Final answer
    x = 27,409.25

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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.