Home / 21,935.44-30,270.82-11,863.90

Finding the Fourth Proportional to 21,935.44, 30,270.82 and 11,863.90

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Solution

The fourth proportional to 21,935.44, 30,270.82 and 11,863.90 is: 16,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.44 : 30,270.82 = 11,863.90 : x
  2. Step 2: Convert to fraction form
    21,935.44/30,270.82 = 11,863.90/x
  3. Step 3: Cross multiply
    21,935.44x = 30,270.82 × 11,863.90
  4. Step 4: Simplify right side
    21,935.44x = 359,129,981.40
  5. Step 5: Solve for x
    x = 359,129,981.40/21,935.44
  6. Step 6: Final answer
    x = 16,372.13

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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.