Home / 21,167.57-29,198.04-13,623.77

Finding the Fourth Proportional to 21,167.57, 29,198.04 and 13,623.77

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Solution

The fourth proportional to 21,167.57, 29,198.04 and 13,623.77 is: 18,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.57 : 29,198.04 = 13,623.77 : x
  2. Step 2: Convert to fraction form
    21,167.57/29,198.04 = 13,623.77/x
  3. Step 3: Cross multiply
    21,167.57x = 29,198.04 × 13,623.77
  4. Step 4: Simplify right side
    21,167.57x = 397,787,381.41
  5. Step 5: Solve for x
    x = 397,787,381.41/21,167.57
  6. Step 6: Final answer
    x = 18,792.30

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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.