Home / 20,584.74-30,869.79-8,891.58

Finding the Fourth Proportional to 20,584.74, 30,869.79 and 8,891.58

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Solution

The fourth proportional to 20,584.74, 30,869.79 and 8,891.58 is: 13,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.74 : 30,869.79 = 8,891.58 : x
  2. Step 2: Convert to fraction form
    20,584.74/30,869.79 = 8,891.58/x
  3. Step 3: Cross multiply
    20,584.74x = 30,869.79 × 8,891.58
  4. Step 4: Simplify right side
    20,584.74x = 274,481,207.37
  5. Step 5: Solve for x
    x = 274,481,207.37/20,584.74
  6. Step 6: Final answer
    x = 13,334.21

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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.