Home / 21,795.68-32,687.15-9,942.75

Finding the Fourth Proportional to 21,795.68, 32,687.15 and 9,942.75

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Solution

The fourth proportional to 21,795.68, 32,687.15 and 9,942.75 is: 14,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.68 : 32,687.15 = 9,942.75 : x
  2. Step 2: Convert to fraction form
    21,795.68/32,687.15 = 9,942.75/x
  3. Step 3: Cross multiply
    21,795.68x = 32,687.15 × 9,942.75
  4. Step 4: Simplify right side
    21,795.68x = 325,000,110.95
  5. Step 5: Solve for x
    x = 325,000,110.95/21,795.68
  6. Step 6: Final answer
    x = 14,911.22

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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.