Home / 36,620.40-54,905.94-13,243.80

Finding the Fourth Proportional to 36,620.40, 54,905.94 and 13,243.80

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Solution

The fourth proportional to 36,620.40, 54,905.94 and 13,243.80 is: 19,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,620.40 : 54,905.94 = 13,243.80 : x
  2. Step 2: Convert to fraction form
    36,620.40/54,905.94 = 13,243.80/x
  3. Step 3: Cross multiply
    36,620.40x = 54,905.94 × 13,243.80
  4. Step 4: Simplify right side
    36,620.40x = 727,163,288.17
  5. Step 5: Solve for x
    x = 727,163,288.17/36,620.40
  6. Step 6: Final answer
    x = 19,856.78

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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.