Home / 19,996.44-30,004.82-12,117.78

Finding the Fourth Proportional to 19,996.44, 30,004.82 and 12,117.78

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Solution

The fourth proportional to 19,996.44, 30,004.82 and 12,117.78 is: 18,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.44 : 30,004.82 = 12,117.78 : x
  2. Step 2: Convert to fraction form
    19,996.44/30,004.82 = 12,117.78/x
  3. Step 3: Cross multiply
    19,996.44x = 30,004.82 × 12,117.78
  4. Step 4: Simplify right side
    19,996.44x = 363,591,807.70
  5. Step 5: Solve for x
    x = 363,591,807.70/19,996.44
  6. Step 6: Final answer
    x = 18,182.83

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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.