Home / 39,580.96-54,621.78-21,675.94

Finding the Fourth Proportional to 39,580.96, 54,621.78 and 21,675.94

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Solution

The fourth proportional to 39,580.96, 54,621.78 and 21,675.94 is: 29,912.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.96 : 54,621.78 = 21,675.94 : x
  2. Step 2: Convert to fraction form
    39,580.96/54,621.78 = 21,675.94/x
  3. Step 3: Cross multiply
    39,580.96x = 54,621.78 × 21,675.94
  4. Step 4: Simplify right side
    39,580.96x = 1,183,978,425.97
  5. Step 5: Solve for x
    x = 1,183,978,425.97/39,580.96
  6. Step 6: Final answer
    x = 29,912.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.