Home / 20,028.87-30,019.71-8,175.24

Finding the Fourth Proportional to 20,028.87, 30,019.71 and 8,175.24

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Solution

The fourth proportional to 20,028.87, 30,019.71 and 8,175.24 is: 12,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.87 : 30,019.71 = 8,175.24 : x
  2. Step 2: Convert to fraction form
    20,028.87/30,019.71 = 8,175.24/x
  3. Step 3: Cross multiply
    20,028.87x = 30,019.71 × 8,175.24
  4. Step 4: Simplify right side
    20,028.87x = 245,418,333.98
  5. Step 5: Solve for x
    x = 245,418,333.98/20,028.87
  6. Step 6: Final answer
    x = 12,253.23

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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.