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Finding the Fourth Proportional to 19,432.62, 29,148.93 and 7,745.94

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Solution

The fourth proportional to 19,432.62, 29,148.93 and 7,745.94 is: 11,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.62 : 29,148.93 = 7,745.94 : x
  2. Step 2: Convert to fraction form
    19,432.62/29,148.93 = 7,745.94/x
  3. Step 3: Cross multiply
    19,432.62x = 29,148.93 × 7,745.94
  4. Step 4: Simplify right side
    19,432.62x = 225,785,862.84
  5. Step 5: Solve for x
    x = 225,785,862.84/19,432.62
  6. Step 6: Final answer
    x = 11,618.91

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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.