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Finding the Fourth Proportional to 40,571.91, 60,857.87 and 12,867.75

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Solution

The fourth proportional to 40,571.91, 60,857.87 and 12,867.75 is: 19,301.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,571.91 : 60,857.87 = 12,867.75 : x
  2. Step 2: Convert to fraction form
    40,571.91/60,857.87 = 12,867.75/x
  3. Step 3: Cross multiply
    40,571.91x = 60,857.87 × 12,867.75
  4. Step 4: Simplify right side
    40,571.91x = 783,103,792.35
  5. Step 5: Solve for x
    x = 783,103,792.35/40,571.91
  6. Step 6: Final answer
    x = 19,301.63

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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.