Home / 30,190.42-41,662.87-16,761.71

Finding the Fourth Proportional to 30,190.42, 41,662.87 and 16,761.71

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Solution

The fourth proportional to 30,190.42, 41,662.87 and 16,761.71 is: 23,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.42 : 41,662.87 = 16,761.71 : x
  2. Step 2: Convert to fraction form
    30,190.42/41,662.87 = 16,761.71/x
  3. Step 3: Cross multiply
    30,190.42x = 41,662.87 × 16,761.71
  4. Step 4: Simplify right side
    30,190.42x = 698,340,694.49
  5. Step 5: Solve for x
    x = 698,340,694.49/30,190.42
  6. Step 6: Final answer
    x = 23,131.20

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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.