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Finding the Fourth Proportional to 29,579, 40,819.38 and 16,331

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Solution

The fourth proportional to 29,579, 40,819.38 and 16,331 is: 22,536.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,579 : 40,819.38 = 16,331 : x
  2. Step 2: Convert to fraction form
    29,579/40,819.38 = 16,331/x
  3. Step 3: Cross multiply
    29,579x = 40,819.38 × 16,331
  4. Step 4: Simplify right side
    29,579x = 666,621,294.78
  5. Step 5: Solve for x
    x = 666,621,294.78/29,579
  6. Step 6: Final answer
    x = 22,536.98

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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.