Home / 21,136.22-29,167.27-12,062.09

Finding the Fourth Proportional to 21,136.22, 29,167.27 and 12,062.09

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Solution

The fourth proportional to 21,136.22, 29,167.27 and 12,062.09 is: 16,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.22 : 29,167.27 = 12,062.09 : x
  2. Step 2: Convert to fraction form
    21,136.22/29,167.27 = 12,062.09/x
  3. Step 3: Cross multiply
    21,136.22x = 29,167.27 × 12,062.09
  4. Step 4: Simplify right side
    21,136.22x = 351,818,029.65
  5. Step 5: Solve for x
    x = 351,818,029.65/21,136.22
  6. Step 6: Final answer
    x = 16,645.27

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1.5x scale

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.