Home / 21,811.96-32,711.46-7,962.04

Finding the Fourth Proportional to 21,811.96, 32,711.46 and 7,962.04

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Solution

The fourth proportional to 21,811.96, 32,711.46 and 7,962.04 is: 11,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.96 : 32,711.46 = 7,962.04 : x
  2. Step 2: Convert to fraction form
    21,811.96/32,711.46 = 7,962.04/x
  3. Step 3: Cross multiply
    21,811.96x = 32,711.46 × 7,962.04
  4. Step 4: Simplify right side
    21,811.96x = 260,449,952.98
  5. Step 5: Solve for x
    x = 260,449,952.98/21,811.96
  6. Step 6: Final answer
    x = 11,940.69

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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.