Home / 39,842.18-54,984.48-21,941

Finding the Fourth Proportional to 39,842.18, 54,984.48 and 21,941

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Solution

The fourth proportional to 39,842.18, 54,984.48 and 21,941 is: 30,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.18 : 54,984.48 = 21,941 : x
  2. Step 2: Convert to fraction form
    39,842.18/54,984.48 = 21,941/x
  3. Step 3: Cross multiply
    39,842.18x = 54,984.48 × 21,941
  4. Step 4: Simplify right side
    39,842.18x = 1,206,414,475.68
  5. Step 5: Solve for x
    x = 1,206,414,475.68/39,842.18
  6. Step 6: Final answer
    x = 30,279.83

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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.