Home / 27,175.61-40,728.30-12,171.75

Finding the Fourth Proportional to 27,175.61, 40,728.30 and 12,171.75

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Solution

The fourth proportional to 27,175.61, 40,728.30 and 12,171.75 is: 18,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,175.61 : 40,728.30 = 12,171.75 : x
  2. Step 2: Convert to fraction form
    27,175.61/40,728.30 = 12,171.75/x
  3. Step 3: Cross multiply
    27,175.61x = 40,728.30 × 12,171.75
  4. Step 4: Simplify right side
    27,175.61x = 495,734,685.53
  5. Step 5: Solve for x
    x = 495,734,685.53/27,175.61
  6. Step 6: Final answer
    x = 18,241.90

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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.