Home / 28,922.12-43,383.18-8,142.92

Finding the Fourth Proportional to 28,922.12, 43,383.18 and 8,142.92

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Solution

The fourth proportional to 28,922.12, 43,383.18 and 8,142.92 is: 12,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.12 : 43,383.18 = 8,142.92 : x
  2. Step 2: Convert to fraction form
    28,922.12/43,383.18 = 8,142.92/x
  3. Step 3: Cross multiply
    28,922.12x = 43,383.18 × 8,142.92
  4. Step 4: Simplify right side
    28,922.12x = 353,265,764.09
  5. Step 5: Solve for x
    x = 353,265,764.09/28,922.12
  6. Step 6: Final answer
    x = 12,214.38

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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.