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Finding the Fourth Proportional to 17,198.70, 25,798.05 and 13,305.90

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Solution

The fourth proportional to 17,198.70, 25,798.05 and 13,305.90 is: 19,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,198.70 : 25,798.05 = 13,305.90 : x
  2. Step 2: Convert to fraction form
    17,198.70/25,798.05 = 13,305.90/x
  3. Step 3: Cross multiply
    17,198.70x = 25,798.05 × 13,305.90
  4. Step 4: Simplify right side
    17,198.70x = 343,266,273.50
  5. Step 5: Solve for x
    x = 343,266,273.50/17,198.70
  6. Step 6: Final answer
    x = 19,958.85

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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.