Home / 39,618.72-54,616.68-30,170.88

Finding the Fourth Proportional to 39,618.72, 54,616.68 and 30,170.88

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Solution

The fourth proportional to 39,618.72, 54,616.68 and 30,170.88 is: 41,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618.72 : 54,616.68 = 30,170.88 : x
  2. Step 2: Convert to fraction form
    39,618.72/54,616.68 = 30,170.88/x
  3. Step 3: Cross multiply
    39,618.72x = 54,616.68 × 30,170.88
  4. Step 4: Simplify right side
    39,618.72x = 1,647,833,298.28
  5. Step 5: Solve for x
    x = 1,647,833,298.28/39,618.72
  6. Step 6: Final answer
    x = 41,592.29

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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.