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Finding the Fourth Proportional to 19,874.64, 29,794.68 and 7,571.28

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Solution

The fourth proportional to 19,874.64, 29,794.68 and 7,571.28 is: 11,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.64 : 29,794.68 = 7,571.28 : x
  2. Step 2: Convert to fraction form
    19,874.64/29,794.68 = 7,571.28/x
  3. Step 3: Cross multiply
    19,874.64x = 29,794.68 × 7,571.28
  4. Step 4: Simplify right side
    19,874.64x = 225,583,864.79
  5. Step 5: Solve for x
    x = 225,583,864.79/19,874.64
  6. Step 6: Final answer
    x = 11,350.34

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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.