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Finding the Fourth Proportional to 29,322, 43,983 and 12,906

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Solution

The fourth proportional to 29,322, 43,983 and 12,906 is: 19,359

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,322 : 43,983 = 12,906 : x
  2. Step 2: Convert to fraction form
    29,322/43,983 = 12,906/x
  3. Step 3: Cross multiply
    29,322x = 43,983 × 12,906
  4. Step 4: Simplify right side
    29,322x = 567,644,598
  5. Step 5: Solve for x
    x = 567,644,598/29,322
  6. Step 6: Final answer
    x = 19,359

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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.