Home / 28,198.12-42,297.66-10,676.20

Finding the Fourth Proportional to 28,198.12, 42,297.66 and 10,676.20

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Solution

The fourth proportional to 28,198.12, 42,297.66 and 10,676.20 is: 16,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.12 : 42,297.66 = 10,676.20 : x
  2. Step 2: Convert to fraction form
    28,198.12/42,297.66 = 10,676.20/x
  3. Step 3: Cross multiply
    28,198.12x = 42,297.66 × 10,676.20
  4. Step 4: Simplify right side
    28,198.12x = 451,578,277.69
  5. Step 5: Solve for x
    x = 451,578,277.69/28,198.12
  6. Step 6: Final answer
    x = 16,014.48

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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.