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Finding the Fourth Proportional to 30,338.91, 41,869.12 and 16,910.25

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Solution

The fourth proportional to 30,338.91, 41,869.12 and 16,910.25 is: 23,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338.91 : 41,869.12 = 16,910.25 : x
  2. Step 2: Convert to fraction form
    30,338.91/41,869.12 = 16,910.25/x
  3. Step 3: Cross multiply
    30,338.91x = 41,869.12 × 16,910.25
  4. Step 4: Simplify right side
    30,338.91x = 708,017,244.20
  5. Step 5: Solve for x
    x = 708,017,244.20/30,338.91
  6. Step 6: Final answer
    x = 23,336.94

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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.