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Finding the Fourth Proportional to 17,920.78, 26,745.62 and 17,454.22

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Solution

The fourth proportional to 17,920.78, 26,745.62 and 17,454.22 is: 26,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.78 : 26,745.62 = 17,454.22 : x
  2. Step 2: Convert to fraction form
    17,920.78/26,745.62 = 17,454.22/x
  3. Step 3: Cross multiply
    17,920.78x = 26,745.62 × 17,454.22
  4. Step 4: Simplify right side
    17,920.78x = 466,823,935.52
  5. Step 5: Solve for x
    x = 466,823,935.52/17,920.78
  6. Step 6: Final answer
    x = 26,049.31

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.