Home / 21,080.80-29,093.43-11,651.23

Finding the Fourth Proportional to 21,080.80, 29,093.43 and 11,651.23

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Solution

The fourth proportional to 21,080.80, 29,093.43 and 11,651.23 is: 16,079.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.80 : 29,093.43 = 11,651.23 : x
  2. Step 2: Convert to fraction form
    21,080.80/29,093.43 = 11,651.23/x
  3. Step 3: Cross multiply
    21,080.80x = 29,093.43 × 11,651.23
  4. Step 4: Simplify right side
    21,080.80x = 338,974,244.42
  5. Step 5: Solve for x
    x = 338,974,244.42/21,080.80
  6. Step 6: Final answer
    x = 16,079.76

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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.