Home / 19,930.20-29,898.90-8,244.60

Finding the Fourth Proportional to 19,930.20, 29,898.90 and 8,244.60

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Solution

The fourth proportional to 19,930.20, 29,898.90 and 8,244.60 is: 12,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.20 : 29,898.90 = 8,244.60 : x
  2. Step 2: Convert to fraction form
    19,930.20/29,898.90 = 8,244.60/x
  3. Step 3: Cross multiply
    19,930.20x = 29,898.90 × 8,244.60
  4. Step 4: Simplify right side
    19,930.20x = 246,504,470.94
  5. Step 5: Solve for x
    x = 246,504,470.94/19,930.20
  6. Step 6: Final answer
    x = 12,368.39

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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.