Home / 19,951.20-29,930.43-8,265.33

Finding the Fourth Proportional to 19,951.20, 29,930.43 and 8,265.33

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Solution

The fourth proportional to 19,951.20, 29,930.43 and 8,265.33 is: 12,399.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.20 : 29,930.43 = 8,265.33 : x
  2. Step 2: Convert to fraction form
    19,951.20/29,930.43 = 8,265.33/x
  3. Step 3: Cross multiply
    19,951.20x = 29,930.43 × 8,265.33
  4. Step 4: Simplify right side
    19,951.20x = 247,384,880.99
  5. Step 5: Solve for x
    x = 247,384,880.99/19,951.20
  6. Step 6: Final answer
    x = 12,399.50

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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.