Home / 21,283.27-29,369.94-12,202.11

Finding the Fourth Proportional to 21,283.27, 29,369.94 and 12,202.11

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Solution

The fourth proportional to 21,283.27, 29,369.94 and 12,202.11 is: 16,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.27 : 29,369.94 = 12,202.11 : x
  2. Step 2: Convert to fraction form
    21,283.27/29,369.94 = 12,202.11/x
  3. Step 3: Cross multiply
    21,283.27x = 29,369.94 × 12,202.11
  4. Step 4: Simplify right side
    21,283.27x = 358,375,238.57
  5. Step 5: Solve for x
    x = 358,375,238.57/21,283.27
  6. Step 6: Final answer
    x = 16,838.35

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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.