Home / 22,930.20-34,383.15-8,139.60

Finding the Fourth Proportional to 22,930.20, 34,383.15 and 8,139.60

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Solution

The fourth proportional to 22,930.20, 34,383.15 and 8,139.60 is: 12,205.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.20 : 34,383.15 = 8,139.60 : x
  2. Step 2: Convert to fraction form
    22,930.20/34,383.15 = 8,139.60/x
  3. Step 3: Cross multiply
    22,930.20x = 34,383.15 × 8,139.60
  4. Step 4: Simplify right side
    22,930.20x = 279,865,087.74
  5. Step 5: Solve for x
    x = 279,865,087.74/22,930.20
  6. Step 6: Final answer
    x = 12,205.09

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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.