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Finding the Fourth Proportional to 25,843.96, 35,660.40 and 15,235.64

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Solution

The fourth proportional to 25,843.96, 35,660.40 and 15,235.64 is: 21,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,843.96 : 35,660.40 = 15,235.64 : x
  2. Step 2: Convert to fraction form
    25,843.96/35,660.40 = 15,235.64/x
  3. Step 3: Cross multiply
    25,843.96x = 35,660.40 × 15,235.64
  4. Step 4: Simplify right side
    25,843.96x = 543,309,201.24
  5. Step 5: Solve for x
    x = 543,309,201.24/25,843.96
  6. Step 6: Final answer
    x = 21,022.68

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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.