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Finding the Fourth Proportional to 29,408, 40,583.09 and 15,979.27

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Solution

The fourth proportional to 29,408, 40,583.09 and 15,979.27 is: 22,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,408 : 40,583.09 = 15,979.27 : x
  2. Step 2: Convert to fraction form
    29,408/40,583.09 = 15,979.27/x
  3. Step 3: Cross multiply
    29,408x = 40,583.09 × 15,979.27
  4. Step 4: Simplify right side
    29,408x = 648,488,152.54
  5. Step 5: Solve for x
    x = 648,488,152.54/29,408
  6. Step 6: Final answer
    x = 22,051.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.