Home / 30,129.66-41,578.23-16,700.88

Finding the Fourth Proportional to 30,129.66, 41,578.23 and 16,700.88

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Solution

The fourth proportional to 30,129.66, 41,578.23 and 16,700.88 is: 23,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.66 : 41,578.23 = 16,700.88 : x
  2. Step 2: Convert to fraction form
    30,129.66/41,578.23 = 16,700.88/x
  3. Step 3: Cross multiply
    30,129.66x = 41,578.23 × 16,700.88
  4. Step 4: Simplify right side
    30,129.66x = 694,393,029.84
  5. Step 5: Solve for x
    x = 694,393,029.84/30,129.66
  6. Step 6: Final answer
    x = 23,046.83

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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.