Home / 21,845.41-32,770.22-8,694.70

Finding the Fourth Proportional to 21,845.41, 32,770.22 and 8,694.70

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Solution

The fourth proportional to 21,845.41, 32,770.22 and 8,694.70 is: 13,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.41 : 32,770.22 = 8,694.70 : x
  2. Step 2: Convert to fraction form
    21,845.41/32,770.22 = 8,694.70/x
  3. Step 3: Cross multiply
    21,845.41x = 32,770.22 × 8,694.70
  4. Step 4: Simplify right side
    21,845.41x = 284,927,231.83
  5. Step 5: Solve for x
    x = 284,927,231.83/21,845.41
  6. Step 6: Final answer
    x = 13,042.89

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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.