Home / 21,223.47-29,286.95-11,664.03

Finding the Fourth Proportional to 21,223.47, 29,286.95 and 11,664.03

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Solution

The fourth proportional to 21,223.47, 29,286.95 and 11,664.03 is: 16,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.47 : 29,286.95 = 11,664.03 : x
  2. Step 2: Convert to fraction form
    21,223.47/29,286.95 = 11,664.03/x
  3. Step 3: Cross multiply
    21,223.47x = 29,286.95 × 11,664.03
  4. Step 4: Simplify right side
    21,223.47x = 341,603,863.41
  5. Step 5: Solve for x
    x = 341,603,863.41/21,223.47
  6. Step 6: Final answer
    x = 16,095.57

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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.