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Finding the Fourth Proportional to 19,149.81, 28,724.73 and 6,003.21

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Solution

The fourth proportional to 19,149.81, 28,724.73 and 6,003.21 is: 9,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.81 : 28,724.73 = 6,003.21 : x
  2. Step 2: Convert to fraction form
    19,149.81/28,724.73 = 6,003.21/x
  3. Step 3: Cross multiply
    19,149.81x = 28,724.73 × 6,003.21
  4. Step 4: Simplify right side
    19,149.81x = 172,440,586.38
  5. Step 5: Solve for x
    x = 172,440,586.38/19,149.81
  6. Step 6: Final answer
    x = 9,004.82

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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.