Home / 21,274.05-29,356.06-12,324.43

Finding the Fourth Proportional to 21,274.05, 29,356.06 and 12,324.43

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Solution

The fourth proportional to 21,274.05, 29,356.06 and 12,324.43 is: 17,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.05 : 29,356.06 = 12,324.43 : x
  2. Step 2: Convert to fraction form
    21,274.05/29,356.06 = 12,324.43/x
  3. Step 3: Cross multiply
    21,274.05x = 29,356.06 × 12,324.43
  4. Step 4: Simplify right side
    21,274.05x = 361,796,706.55
  5. Step 5: Solve for x
    x = 361,796,706.55/21,274.05
  6. Step 6: Final answer
    x = 17,006.48

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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.