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Finding the Fourth Proportional to 29,211, 40,311.18 and 16,636.92

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Solution

The fourth proportional to 29,211, 40,311.18 and 16,636.92 is: 22,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,211 : 40,311.18 = 16,636.92 : x
  2. Step 2: Convert to fraction form
    29,211/40,311.18 = 16,636.92/x
  3. Step 3: Cross multiply
    29,211x = 40,311.18 × 16,636.92
  4. Step 4: Simplify right side
    29,211x = 670,653,876.77
  5. Step 5: Solve for x
    x = 670,653,876.77/29,211
  6. Step 6: Final answer
    x = 22,958.95

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1.5x scale

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.