Home / 54,912.97-82,338.25-21,615

Finding the Fourth Proportional to 54,912.97, 82,338.25 and 21,615

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Solution

The fourth proportional to 54,912.97, 82,338.25 and 21,615 is: 32,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.97 : 82,338.25 = 21,615 : x
  2. Step 2: Convert to fraction form
    54,912.97/82,338.25 = 21,615/x
  3. Step 3: Cross multiply
    54,912.97x = 82,338.25 × 21,615
  4. Step 4: Simplify right side
    54,912.97x = 1,779,741,273.75
  5. Step 5: Solve for x
    x = 1,779,741,273.75/54,912.97
  6. Step 6: Final answer
    x = 32,410.22

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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.