Home / 39,591.72-54,578.82-30,143.88

Finding the Fourth Proportional to 39,591.72, 54,578.82 and 30,143.88

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Solution

The fourth proportional to 39,591.72, 54,578.82 and 30,143.88 is: 41,554.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,591.72 : 54,578.82 = 30,143.88 : x
  2. Step 2: Convert to fraction form
    39,591.72/54,578.82 = 30,143.88/x
  3. Step 3: Cross multiply
    39,591.72x = 54,578.82 × 30,143.88
  4. Step 4: Simplify right side
    39,591.72x = 1,645,217,400.62
  5. Step 5: Solve for x
    x = 1,645,217,400.62/39,591.72
  6. Step 6: Final answer
    x = 41,554.58

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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.