Home / 21,136.72-29,167.96-12,062.58

Finding the Fourth Proportional to 21,136.72, 29,167.96 and 12,062.58

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Solution

The fourth proportional to 21,136.72, 29,167.96 and 12,062.58 is: 16,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.72 : 29,167.96 = 12,062.58 : x
  2. Step 2: Convert to fraction form
    21,136.72/29,167.96 = 12,062.58/x
  3. Step 3: Cross multiply
    21,136.72x = 29,167.96 × 12,062.58
  4. Step 4: Simplify right side
    21,136.72x = 351,840,850.94
  5. Step 5: Solve for x
    x = 351,840,850.94/21,136.72
  6. Step 6: Final answer
    x = 16,645.95

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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.