Home / 30,127.06-41,578.78-18,190.39

Finding the Fourth Proportional to 30,127.06, 41,578.78 and 18,190.39

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Solution

The fourth proportional to 30,127.06, 41,578.78 and 18,190.39 is: 25,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127.06 : 41,578.78 = 18,190.39 : x
  2. Step 2: Convert to fraction form
    30,127.06/41,578.78 = 18,190.39/x
  3. Step 3: Cross multiply
    30,127.06x = 41,578.78 × 18,190.39
  4. Step 4: Simplify right side
    30,127.06x = 756,334,223.92
  5. Step 5: Solve for x
    x = 756,334,223.92/30,127.06
  6. Step 6: Final answer
    x = 25,104.81

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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.