Home / 21,172.97-29,219.87-11,741.33

Finding the Fourth Proportional to 21,172.97, 29,219.87 and 11,741.33

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Solution

The fourth proportional to 21,172.97, 29,219.87 and 11,741.33 is: 16,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,172.97 : 29,219.87 = 11,741.33 : x
  2. Step 2: Convert to fraction form
    21,172.97/29,219.87 = 11,741.33/x
  3. Step 3: Cross multiply
    21,172.97x = 29,219.87 × 11,741.33
  4. Step 4: Simplify right side
    21,172.97x = 343,080,136.23
  5. Step 5: Solve for x
    x = 343,080,136.23/21,172.97
  6. Step 6: Final answer
    x = 16,203.68

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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.