Home / 18,958.32-28,441.53-7,271.44

Finding the Fourth Proportional to 18,958.32, 28,441.53 and 7,271.44

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Solution

The fourth proportional to 18,958.32, 28,441.53 and 7,271.44 is: 10,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.32 : 28,441.53 = 7,271.44 : x
  2. Step 2: Convert to fraction form
    18,958.32/28,441.53 = 7,271.44/x
  3. Step 3: Cross multiply
    18,958.32x = 28,441.53 × 7,271.44
  4. Step 4: Simplify right side
    18,958.32x = 206,810,807.80
  5. Step 5: Solve for x
    x = 206,810,807.80/18,958.32
  6. Step 6: Final answer
    x = 10,908.71

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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.