Home / 28,021.20-42,033.96-8,299.44

Finding the Fourth Proportional to 28,021.20, 42,033.96 and 8,299.44

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Solution

The fourth proportional to 28,021.20, 42,033.96 and 8,299.44 is: 12,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.20 : 42,033.96 = 8,299.44 : x
  2. Step 2: Convert to fraction form
    28,021.20/42,033.96 = 8,299.44/x
  3. Step 3: Cross multiply
    28,021.20x = 42,033.96 × 8,299.44
  4. Step 4: Simplify right side
    28,021.20x = 348,858,328.98
  5. Step 5: Solve for x
    x = 348,858,328.98/28,021.20
  6. Step 6: Final answer
    x = 12,449.80

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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.