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Finding the Fourth Proportional to 19,551.42, 29,328.86 and 5,511.57

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Solution

The fourth proportional to 19,551.42, 29,328.86 and 5,511.57 is: 8,267.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.42 : 29,328.86 = 5,511.57 : x
  2. Step 2: Convert to fraction form
    19,551.42/29,328.86 = 5,511.57/x
  3. Step 3: Cross multiply
    19,551.42x = 29,328.86 × 5,511.57
  4. Step 4: Simplify right side
    19,551.42x = 161,648,064.91
  5. Step 5: Solve for x
    x = 161,648,064.91/19,551.42
  6. Step 6: Final answer
    x = 8,267.84

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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.