Home / 21,278.24-29,363.94-11,849.02

Finding the Fourth Proportional to 21,278.24, 29,363.94 and 11,849.02

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Solution

The fourth proportional to 21,278.24, 29,363.94 and 11,849.02 is: 16,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278.24 : 29,363.94 = 11,849.02 : x
  2. Step 2: Convert to fraction form
    21,278.24/29,363.94 = 11,849.02/x
  3. Step 3: Cross multiply
    21,278.24x = 29,363.94 × 11,849.02
  4. Step 4: Simplify right side
    21,278.24x = 347,933,912.34
  5. Step 5: Solve for x
    x = 347,933,912.34/21,278.24
  6. Step 6: Final answer
    x = 16,351.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.