Home / 28,912.46-43,375.55-9,191.03

Finding the Fourth Proportional to 28,912.46, 43,375.55 and 9,191.03

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Solution

The fourth proportional to 28,912.46, 43,375.55 and 9,191.03 is: 13,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.46 : 43,375.55 = 9,191.03 : x
  2. Step 2: Convert to fraction form
    28,912.46/43,375.55 = 9,191.03/x
  3. Step 3: Cross multiply
    28,912.46x = 43,375.55 × 9,191.03
  4. Step 4: Simplify right side
    28,912.46x = 398,665,718.48
  5. Step 5: Solve for x
    x = 398,665,718.48/28,912.46
  6. Step 6: Final answer
    x = 13,788.72

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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.