Home / 30,129.51-41,578.62-16,700.61

Finding the Fourth Proportional to 30,129.51, 41,578.62 and 16,700.61

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Solution

The fourth proportional to 30,129.51, 41,578.62 and 16,700.61 is: 23,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.51 : 41,578.62 = 16,700.61 : x
  2. Step 2: Convert to fraction form
    30,129.51/41,578.62 = 16,700.61/x
  3. Step 3: Cross multiply
    30,129.51x = 41,578.62 × 16,700.61
  4. Step 4: Simplify right side
    30,129.51x = 694,388,316.96
  5. Step 5: Solve for x
    x = 694,388,316.96/30,129.51
  6. Step 6: Final answer
    x = 23,046.78

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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.