Home / 21,190.56-31,773.48-6,395.04

Finding the Fourth Proportional to 21,190.56, 31,773.48 and 6,395.04

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Solution

The fourth proportional to 21,190.56, 31,773.48 and 6,395.04 is: 9,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.56 : 31,773.48 = 6,395.04 : x
  2. Step 2: Convert to fraction form
    21,190.56/31,773.48 = 6,395.04/x
  3. Step 3: Cross multiply
    21,190.56x = 31,773.48 × 6,395.04
  4. Step 4: Simplify right side
    21,190.56x = 203,192,675.54
  5. Step 5: Solve for x
    x = 203,192,675.54/21,190.56
  6. Step 6: Final answer
    x = 9,588.83

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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.