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Finding the Fourth Proportional to 19,869.46, 29,797.61 and 8,020.17

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Solution

The fourth proportional to 19,869.46, 29,797.61 and 8,020.17 is: 12,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.46 : 29,797.61 = 8,020.17 : x
  2. Step 2: Convert to fraction form
    19,869.46/29,797.61 = 8,020.17/x
  3. Step 3: Cross multiply
    19,869.46x = 29,797.61 × 8,020.17
  4. Step 4: Simplify right side
    19,869.46x = 238,981,857.69
  5. Step 5: Solve for x
    x = 238,981,857.69/19,869.46
  6. Step 6: Final answer
    x = 12,027.60

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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.