Home / 30,600.62-42,229.69-17,172.69

Finding the Fourth Proportional to 30,600.62, 42,229.69 and 17,172.69

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Solution

The fourth proportional to 30,600.62, 42,229.69 and 17,172.69 is: 23,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.62 : 42,229.69 = 17,172.69 : x
  2. Step 2: Convert to fraction form
    30,600.62/42,229.69 = 17,172.69/x
  3. Step 3: Cross multiply
    30,600.62x = 42,229.69 × 17,172.69
  4. Step 4: Simplify right side
    30,600.62x = 725,197,289.30
  5. Step 5: Solve for x
    x = 725,197,289.30/30,600.62
  6. Step 6: Final answer
    x = 23,698.78

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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.