Home / 20,584.91-30,872.75-12,267.29

Finding the Fourth Proportional to 20,584.91, 30,872.75 and 12,267.29

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Solution

The fourth proportional to 20,584.91, 30,872.75 and 12,267.29 is: 18,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.91 : 30,872.75 = 12,267.29 : x
  2. Step 2: Convert to fraction form
    20,584.91/30,872.75 = 12,267.29/x
  3. Step 3: Cross multiply
    20,584.91x = 30,872.75 × 12,267.29
  4. Step 4: Simplify right side
    20,584.91x = 378,724,993.19
  5. Step 5: Solve for x
    x = 378,724,993.19/20,584.91
  6. Step 6: Final answer
    x = 18,398.18

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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.