Home / 20,143.44-30,184.38-8,450.28

Finding the Fourth Proportional to 20,143.44, 30,184.38 and 8,450.28

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Solution

The fourth proportional to 20,143.44, 30,184.38 and 8,450.28 is: 12,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.44 : 30,184.38 = 8,450.28 : x
  2. Step 2: Convert to fraction form
    20,143.44/30,184.38 = 8,450.28/x
  3. Step 3: Cross multiply
    20,143.44x = 30,184.38 × 8,450.28
  4. Step 4: Simplify right side
    20,143.44x = 255,066,462.63
  5. Step 5: Solve for x
    x = 255,066,462.63/20,143.44
  6. Step 6: Final answer
    x = 12,662.51

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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.