Home / 21,926.94-30,223.62-17,138.43

Finding the Fourth Proportional to 21,926.94, 30,223.62 and 17,138.43

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Solution

The fourth proportional to 21,926.94, 30,223.62 and 17,138.43 is: 23,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.94 : 30,223.62 = 17,138.43 : x
  2. Step 2: Convert to fraction form
    21,926.94/30,223.62 = 17,138.43/x
  3. Step 3: Cross multiply
    21,926.94x = 30,223.62 × 17,138.43
  4. Step 4: Simplify right side
    21,926.94x = 517,985,395.72
  5. Step 5: Solve for x
    x = 517,985,395.72/21,926.94
  6. Step 6: Final answer
    x = 23,623.24

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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.