Home / 30,610.98-42,243.78-17,183.21

Finding the Fourth Proportional to 30,610.98, 42,243.78 and 17,183.21

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Solution

The fourth proportional to 30,610.98, 42,243.78 and 17,183.21 is: 23,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.98 : 42,243.78 = 17,183.21 : x
  2. Step 2: Convert to fraction form
    30,610.98/42,243.78 = 17,183.21/x
  3. Step 3: Cross multiply
    30,610.98x = 42,243.78 × 17,183.21
  4. Step 4: Simplify right side
    30,610.98x = 725,883,742.93
  5. Step 5: Solve for x
    x = 725,883,742.93/30,610.98
  6. Step 6: Final answer
    x = 23,713.18

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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.