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Finding the Fourth Proportional to 31,662, 47,493 and 13,194

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Solution

The fourth proportional to 31,662, 47,493 and 13,194 is: 19,791

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,662 : 47,493 = 13,194 : x
  2. Step 2: Convert to fraction form
    31,662/47,493 = 13,194/x
  3. Step 3: Cross multiply
    31,662x = 47,493 × 13,194
  4. Step 4: Simplify right side
    31,662x = 626,622,642
  5. Step 5: Solve for x
    x = 626,622,642/31,662
  6. Step 6: Final answer
    x = 19,791

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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.