Home / 30,163.84-41,624.22-18,220.12

Finding the Fourth Proportional to 30,163.84, 41,624.22 and 18,220.12

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Solution

The fourth proportional to 30,163.84, 41,624.22 and 18,220.12 is: 25,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.84 : 41,624.22 = 18,220.12 : x
  2. Step 2: Convert to fraction form
    30,163.84/41,624.22 = 18,220.12/x
  3. Step 3: Cross multiply
    30,163.84x = 41,624.22 × 18,220.12
  4. Step 4: Simplify right side
    30,163.84x = 758,398,283.31
  5. Step 5: Solve for x
    x = 758,398,283.31/30,163.84
  6. Step 6: Final answer
    x = 25,142.63

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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.