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Finding the Fourth Proportional to 29,336, 44,004 and 12,920

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Solution

The fourth proportional to 29,336, 44,004 and 12,920 is: 19,380

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,336 : 44,004 = 12,920 : x
  2. Step 2: Convert to fraction form
    29,336/44,004 = 12,920/x
  3. Step 3: Cross multiply
    29,336x = 44,004 × 12,920
  4. Step 4: Simplify right side
    29,336x = 568,531,680
  5. Step 5: Solve for x
    x = 568,531,680/29,336
  6. Step 6: Final answer
    x = 19,380

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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.