Home / 39,814.52-54,942.84-21,909.56

Finding the Fourth Proportional to 39,814.52, 54,942.84 and 21,909.56

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Solution

The fourth proportional to 39,814.52, 54,942.84 and 21,909.56 is: 30,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.52 : 54,942.84 = 21,909.56 : x
  2. Step 2: Convert to fraction form
    39,814.52/54,942.84 = 21,909.56/x
  3. Step 3: Cross multiply
    39,814.52x = 54,942.84 × 21,909.56
  4. Step 4: Simplify right side
    39,814.52x = 1,203,773,449.55
  5. Step 5: Solve for x
    x = 1,203,773,449.55/39,814.52
  6. Step 6: Final answer
    x = 30,234.53

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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.