Home / 39,648.44-54,715.60-21,742.38

Finding the Fourth Proportional to 39,648.44, 54,715.60 and 21,742.38

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Solution

The fourth proportional to 39,648.44, 54,715.60 and 21,742.38 is: 30,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,648.44 : 54,715.60 = 21,742.38 : x
  2. Step 2: Convert to fraction form
    39,648.44/54,715.60 = 21,742.38/x
  3. Step 3: Cross multiply
    39,648.44x = 54,715.60 × 21,742.38
  4. Step 4: Simplify right side
    39,648.44x = 1,189,647,394.31
  5. Step 5: Solve for x
    x = 1,189,647,394.31/39,648.44
  6. Step 6: Final answer
    x = 30,004.90

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1.5x scale

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.