Home / 28,864.80-43,286.40-10,137.60

Finding the Fourth Proportional to 28,864.80, 43,286.40 and 10,137.60

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Solution

The fourth proportional to 28,864.80, 43,286.40 and 10,137.60 is: 15,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.80 : 43,286.40 = 10,137.60 : x
  2. Step 2: Convert to fraction form
    28,864.80/43,286.40 = 10,137.60/x
  3. Step 3: Cross multiply
    28,864.80x = 43,286.40 × 10,137.60
  4. Step 4: Simplify right side
    28,864.80x = 438,820,208.64
  5. Step 5: Solve for x
    x = 438,820,208.64/28,864.80
  6. Step 6: Final answer
    x = 15,202.61

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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.