Home / 21,914.11-32,872.98-7,122.70

Finding the Fourth Proportional to 21,914.11, 32,872.98 and 7,122.70

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Solution

The fourth proportional to 21,914.11, 32,872.98 and 7,122.70 is: 10,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.11 : 32,872.98 = 7,122.70 : x
  2. Step 2: Convert to fraction form
    21,914.11/32,872.98 = 7,122.70/x
  3. Step 3: Cross multiply
    21,914.11x = 32,872.98 × 7,122.70
  4. Step 4: Simplify right side
    21,914.11x = 234,144,374.65
  5. Step 5: Solve for x
    x = 234,144,374.65/21,914.11
  6. Step 6: Final answer
    x = 10,684.64

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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.