Home / 30,129.09-41,578.88-16,517.91

Finding the Fourth Proportional to 30,129.09, 41,578.88 and 16,517.91

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Solution

The fourth proportional to 30,129.09, 41,578.88 and 16,517.91 is: 22,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.09 : 41,578.88 = 16,517.91 : x
  2. Step 2: Convert to fraction form
    30,129.09/41,578.88 = 16,517.91/x
  3. Step 3: Cross multiply
    30,129.09x = 41,578.88 × 16,517.91
  4. Step 4: Simplify right side
    30,129.09x = 686,796,197.74
  5. Step 5: Solve for x
    x = 686,796,197.74/30,129.09
  6. Step 6: Final answer
    x = 22,795.12

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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.