Home / 30,850.90-42,578.22-17,425.60

Finding the Fourth Proportional to 30,850.90, 42,578.22 and 17,425.60

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Solution

The fourth proportional to 30,850.90, 42,578.22 and 17,425.60 is: 24,049.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,850.90 : 42,578.22 = 17,425.60 : x
  2. Step 2: Convert to fraction form
    30,850.90/42,578.22 = 17,425.60/x
  3. Step 3: Cross multiply
    30,850.90x = 42,578.22 × 17,425.60
  4. Step 4: Simplify right side
    30,850.90x = 741,951,030.43
  5. Step 5: Solve for x
    x = 741,951,030.43/30,850.90
  6. Step 6: Final answer
    x = 24,049.57

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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.