Home / 21,770.20-32,657.82-8,623.72

Finding the Fourth Proportional to 21,770.20, 32,657.82 and 8,623.72

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Solution

The fourth proportional to 21,770.20, 32,657.82 and 8,623.72 is: 12,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.20 : 32,657.82 = 8,623.72 : x
  2. Step 2: Convert to fraction form
    21,770.20/32,657.82 = 8,623.72/x
  3. Step 3: Cross multiply
    21,770.20x = 32,657.82 × 8,623.72
  4. Step 4: Simplify right side
    21,770.20x = 281,631,895.49
  5. Step 5: Solve for x
    x = 281,631,895.49/21,770.20
  6. Step 6: Final answer
    x = 12,936.58

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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.