Home / 27,181.68-40,778.28-8,726.64

Finding the Fourth Proportional to 27,181.68, 40,778.28 and 8,726.64

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Solution

The fourth proportional to 27,181.68, 40,778.28 and 8,726.64 is: 13,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,181.68 : 40,778.28 = 8,726.64 : x
  2. Step 2: Convert to fraction form
    27,181.68/40,778.28 = 8,726.64/x
  3. Step 3: Cross multiply
    27,181.68x = 40,778.28 × 8,726.64
  4. Step 4: Simplify right side
    27,181.68x = 355,857,369.38
  5. Step 5: Solve for x
    x = 355,857,369.38/27,181.68
  6. Step 6: Final answer
    x = 13,091.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.