Home / 28,857.28-43,282.16-9,137.84

Finding the Fourth Proportional to 28,857.28, 43,282.16 and 9,137.84

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Solution

The fourth proportional to 28,857.28, 43,282.16 and 9,137.84 is: 13,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.28 : 43,282.16 = 9,137.84 : x
  2. Step 2: Convert to fraction form
    28,857.28/43,282.16 = 9,137.84/x
  3. Step 3: Cross multiply
    28,857.28x = 43,282.16 × 9,137.84
  4. Step 4: Simplify right side
    28,857.28x = 395,505,452.93
  5. Step 5: Solve for x
    x = 395,505,452.93/28,857.28
  6. Step 6: Final answer
    x = 13,705.57

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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.