Home / 30,143.67-45,224.92-18,148.97

Finding the Fourth Proportional to 30,143.67, 45,224.92 and 18,148.97

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Solution

The fourth proportional to 30,143.67, 45,224.92 and 18,148.97 is: 27,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.67 : 45,224.92 = 18,148.97 : x
  2. Step 2: Convert to fraction form
    30,143.67/45,224.92 = 18,148.97/x
  3. Step 3: Cross multiply
    30,143.67x = 45,224.92 × 18,148.97
  4. Step 4: Simplify right side
    30,143.67x = 820,785,716.15
  5. Step 5: Solve for x
    x = 820,785,716.15/30,143.67
  6. Step 6: Final answer
    x = 27,229.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.