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Finding the Fourth Proportional to 19,330.30, 28,999.08 and 6,179.14

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Solution

The fourth proportional to 19,330.30, 28,999.08 and 6,179.14 is: 9,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.30 : 28,999.08 = 6,179.14 : x
  2. Step 2: Convert to fraction form
    19,330.30/28,999.08 = 6,179.14/x
  3. Step 3: Cross multiply
    19,330.30x = 28,999.08 × 6,179.14
  4. Step 4: Simplify right side
    19,330.30x = 179,189,375.19
  5. Step 5: Solve for x
    x = 179,189,375.19/19,330.30
  6. Step 6: Final answer
    x = 9,269.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.