Home / 21,694.43-29,953.83-16,919.70

Finding the Fourth Proportional to 21,694.43, 29,953.83 and 16,919.70

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Solution

The fourth proportional to 21,694.43, 29,953.83 and 16,919.70 is: 23,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.43 : 29,953.83 = 16,919.70 : x
  2. Step 2: Convert to fraction form
    21,694.43/29,953.83 = 16,919.70/x
  3. Step 3: Cross multiply
    21,694.43x = 29,953.83 × 16,919.70
  4. Step 4: Simplify right side
    21,694.43x = 506,809,857.49
  5. Step 5: Solve for x
    x = 506,809,857.49/21,694.43
  6. Step 6: Final answer
    x = 23,361.29

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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.