Home / 21,936.24-32,901.12-8,082

Finding the Fourth Proportional to 21,936.24, 32,901.12 and 8,082

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Solution

The fourth proportional to 21,936.24, 32,901.12 and 8,082 is: 12,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.24 : 32,901.12 = 8,082 : x
  2. Step 2: Convert to fraction form
    21,936.24/32,901.12 = 8,082/x
  3. Step 3: Cross multiply
    21,936.24x = 32,901.12 × 8,082
  4. Step 4: Simplify right side
    21,936.24x = 265,906,851.84
  5. Step 5: Solve for x
    x = 265,906,851.84/21,936.24
  6. Step 6: Final answer
    x = 12,121.81

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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.