Home / 39,815.62-54,944.38-21,910.62

Finding the Fourth Proportional to 39,815.62, 54,944.38 and 21,910.62

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Solution

The fourth proportional to 39,815.62, 54,944.38 and 21,910.62 is: 30,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,815.62 : 54,944.38 = 21,910.62 : x
  2. Step 2: Convert to fraction form
    39,815.62/54,944.38 = 21,910.62/x
  3. Step 3: Cross multiply
    39,815.62x = 54,944.38 × 21,910.62
  4. Step 4: Simplify right side
    39,815.62x = 1,203,865,431.32
  5. Step 5: Solve for x
    x = 1,203,865,431.32/39,815.62
  6. Step 6: Final answer
    x = 30,236.01

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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.