Home / 21,282.33-31,922.27-8,136.03

Finding the Fourth Proportional to 21,282.33, 31,922.27 and 8,136.03

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Solution

The fourth proportional to 21,282.33, 31,922.27 and 8,136.03 is: 12,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.33 : 31,922.27 = 8,136.03 : x
  2. Step 2: Convert to fraction form
    21,282.33/31,922.27 = 8,136.03/x
  3. Step 3: Cross multiply
    21,282.33x = 31,922.27 × 8,136.03
  4. Step 4: Simplify right side
    21,282.33x = 259,720,546.39
  5. Step 5: Solve for x
    x = 259,720,546.39/21,282.33
  6. Step 6: Final answer
    x = 12,203.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.