Home / 28,179.35-42,259.29-8,183.42

Finding the Fourth Proportional to 28,179.35, 42,259.29 and 8,183.42

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Solution

The fourth proportional to 28,179.35, 42,259.29 and 8,183.42 is: 12,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.35 : 42,259.29 = 8,183.42 : x
  2. Step 2: Convert to fraction form
    28,179.35/42,259.29 = 8,183.42/x
  3. Step 3: Cross multiply
    28,179.35x = 42,259.29 × 8,183.42
  4. Step 4: Simplify right side
    28,179.35x = 345,825,307.68
  5. Step 5: Solve for x
    x = 345,825,307.68/28,179.35
  6. Step 6: Final answer
    x = 12,272.30

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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.