Home / 39,151.24-54,027.78-21,245.48

Finding the Fourth Proportional to 39,151.24, 54,027.78 and 21,245.48

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Solution

The fourth proportional to 39,151.24, 54,027.78 and 21,245.48 is: 29,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.24 : 54,027.78 = 21,245.48 : x
  2. Step 2: Convert to fraction form
    39,151.24/54,027.78 = 21,245.48/x
  3. Step 3: Cross multiply
    39,151.24x = 54,027.78 × 21,245.48
  4. Step 4: Simplify right side
    39,151.24x = 1,147,846,119.43
  5. Step 5: Solve for x
    x = 1,147,846,119.43/39,151.24
  6. Step 6: Final answer
    x = 29,318.26

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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.