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Finding the Fourth Proportional to 30,279.86, 41,785.90 and 16,850.88

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Solution

The fourth proportional to 30,279.86, 41,785.90 and 16,850.88 is: 23,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.86 : 41,785.90 = 16,850.88 : x
  2. Step 2: Convert to fraction form
    30,279.86/41,785.90 = 16,850.88/x
  3. Step 3: Cross multiply
    30,279.86x = 41,785.90 × 16,850.88
  4. Step 4: Simplify right side
    30,279.86x = 704,129,186.59
  5. Step 5: Solve for x
    x = 704,129,186.59/30,279.86
  6. Step 6: Final answer
    x = 23,254.04

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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.