Home / 31,943.08-47,914.62-8,571.88

Finding the Fourth Proportional to 31,943.08, 47,914.62 and 8,571.88

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Solution

The fourth proportional to 31,943.08, 47,914.62 and 8,571.88 is: 12,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.08 : 47,914.62 = 8,571.88 : x
  2. Step 2: Convert to fraction form
    31,943.08/47,914.62 = 8,571.88/x
  3. Step 3: Cross multiply
    31,943.08x = 47,914.62 × 8,571.88
  4. Step 4: Simplify right side
    31,943.08x = 410,718,372.89
  5. Step 5: Solve for x
    x = 410,718,372.89/31,943.08
  6. Step 6: Final answer
    x = 12,857.82

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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.