Home / 18,960.28-28,464.72-11,942.44

Finding the Fourth Proportional to 18,960.28, 28,464.72 and 11,942.44

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Solution

The fourth proportional to 18,960.28, 28,464.72 and 11,942.44 is: 17,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.28 : 28,464.72 = 11,942.44 : x
  2. Step 2: Convert to fraction form
    18,960.28/28,464.72 = 11,942.44/x
  3. Step 3: Cross multiply
    18,960.28x = 28,464.72 × 11,942.44
  4. Step 4: Simplify right side
    18,960.28x = 339,938,210.72
  5. Step 5: Solve for x
    x = 339,938,210.72/18,960.28
  6. Step 6: Final answer
    x = 17,928.97

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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.