Home / 28,771.01-43,139.24-11,249.09

Finding the Fourth Proportional to 28,771.01, 43,139.24 and 11,249.09

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Solution

The fourth proportional to 28,771.01, 43,139.24 and 11,249.09 is: 16,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.01 : 43,139.24 = 11,249.09 : x
  2. Step 2: Convert to fraction form
    28,771.01/43,139.24 = 11,249.09/x
  3. Step 3: Cross multiply
    28,771.01x = 43,139.24 × 11,249.09
  4. Step 4: Simplify right side
    28,771.01x = 485,277,137.05
  5. Step 5: Solve for x
    x = 485,277,137.05/28,771.01
  6. Step 6: Final answer
    x = 16,866.88

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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.