Home / 39,751.83-54,861.03-21,850.56

Finding the Fourth Proportional to 39,751.83, 54,861.03 and 21,850.56

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Solution

The fourth proportional to 39,751.83, 54,861.03 and 21,850.56 is: 30,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.83 : 54,861.03 = 21,850.56 : x
  2. Step 2: Convert to fraction form
    39,751.83/54,861.03 = 21,850.56/x
  3. Step 3: Cross multiply
    39,751.83x = 54,861.03 × 21,850.56
  4. Step 4: Simplify right side
    39,751.83x = 1,198,744,227.68
  5. Step 5: Solve for x
    x = 1,198,744,227.68/39,751.83
  6. Step 6: Final answer
    x = 30,155.70

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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.