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Finding the Fourth Proportional to 19,408.54, 29,112.99 and 5,557.54

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Solution

The fourth proportional to 19,408.54, 29,112.99 and 5,557.54 is: 8,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.54 : 29,112.99 = 5,557.54 : x
  2. Step 2: Convert to fraction form
    19,408.54/29,112.99 = 5,557.54/x
  3. Step 3: Cross multiply
    19,408.54x = 29,112.99 × 5,557.54
  4. Step 4: Simplify right side
    19,408.54x = 161,796,606.44
  5. Step 5: Solve for x
    x = 161,796,606.44/19,408.54
  6. Step 6: Final answer
    x = 8,336.36

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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.