Home / 21,074.20-29,082.30-11,642.83

Finding the Fourth Proportional to 21,074.20, 29,082.30 and 11,642.83

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Solution

The fourth proportional to 21,074.20, 29,082.30 and 11,642.83 is: 16,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.20 : 29,082.30 = 11,642.83 : x
  2. Step 2: Convert to fraction form
    21,074.20/29,082.30 = 11,642.83/x
  3. Step 3: Cross multiply
    21,074.20x = 29,082.30 × 11,642.83
  4. Step 4: Simplify right side
    21,074.20x = 338,600,274.91
  5. Step 5: Solve for x
    x = 338,600,274.91/21,074.20
  6. Step 6: Final answer
    x = 16,067.05

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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.