Home / 21,161.45-29,136.31-17,968.03

Finding the Fourth Proportional to 21,161.45, 29,136.31 and 17,968.03

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Solution

The fourth proportional to 21,161.45, 29,136.31 and 17,968.03 is: 24,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.45 : 29,136.31 = 17,968.03 : x
  2. Step 2: Convert to fraction form
    21,161.45/29,136.31 = 17,968.03/x
  3. Step 3: Cross multiply
    21,161.45x = 29,136.31 × 17,968.03
  4. Step 4: Simplify right side
    21,161.45x = 523,521,974.41
  5. Step 5: Solve for x
    x = 523,521,974.41/21,161.45
  6. Step 6: Final answer
    x = 24,739.42

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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.