Home / 28,183.22-42,281.85-8,461.34

Finding the Fourth Proportional to 28,183.22, 42,281.85 and 8,461.34

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Solution

The fourth proportional to 28,183.22, 42,281.85 and 8,461.34 is: 12,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.22 : 42,281.85 = 8,461.34 : x
  2. Step 2: Convert to fraction form
    28,183.22/42,281.85 = 8,461.34/x
  3. Step 3: Cross multiply
    28,183.22x = 42,281.85 × 8,461.34
  4. Step 4: Simplify right side
    28,183.22x = 357,761,108.68
  5. Step 5: Solve for x
    x = 357,761,108.68/28,183.22
  6. Step 6: Final answer
    x = 12,694.12

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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.