Home / 19,974.40-29,961.60-6,824.80

Finding the Fourth Proportional to 19,974.40, 29,961.60 and 6,824.80

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Solution

The fourth proportional to 19,974.40, 29,961.60 and 6,824.80 is: 10,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.40 : 29,961.60 = 6,824.80 : x
  2. Step 2: Convert to fraction form
    19,974.40/29,961.60 = 6,824.80/x
  3. Step 3: Cross multiply
    19,974.40x = 29,961.60 × 6,824.80
  4. Step 4: Simplify right side
    19,974.40x = 204,481,927.68
  5. Step 5: Solve for x
    x = 204,481,927.68/19,974.40
  6. Step 6: Final answer
    x = 10,237.20

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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.