Home / 39,819.45-54,950.88-21,914.46

Finding the Fourth Proportional to 39,819.45, 54,950.88 and 21,914.46

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Solution

The fourth proportional to 39,819.45, 54,950.88 and 21,914.46 is: 30,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.45 : 54,950.88 = 21,914.46 : x
  2. Step 2: Convert to fraction form
    39,819.45/54,950.88 = 21,914.46/x
  3. Step 3: Cross multiply
    39,819.45x = 54,950.88 × 21,914.46
  4. Step 4: Simplify right side
    39,819.45x = 1,204,218,861.72
  5. Step 5: Solve for x
    x = 1,204,218,861.72/39,819.45
  6. Step 6: Final answer
    x = 30,241.98

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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.