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Finding the Fourth Proportional to 29,318, 43,977 and 12,902

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Solution

The fourth proportional to 29,318, 43,977 and 12,902 is: 19,353

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318 : 43,977 = 12,902 : x
  2. Step 2: Convert to fraction form
    29,318/43,977 = 12,902/x
  3. Step 3: Cross multiply
    29,318x = 43,977 × 12,902
  4. Step 4: Simplify right side
    29,318x = 567,391,254
  5. Step 5: Solve for x
    x = 567,391,254/29,318
  6. Step 6: Final answer
    x = 19,353

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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.