Home / 28,976.80-43,454.40-10,249.60

Finding the Fourth Proportional to 28,976.80, 43,454.40 and 10,249.60

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Solution

The fourth proportional to 28,976.80, 43,454.40 and 10,249.60 is: 15,370.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.80 : 43,454.40 = 10,249.60 : x
  2. Step 2: Convert to fraction form
    28,976.80/43,454.40 = 10,249.60/x
  3. Step 3: Cross multiply
    28,976.80x = 43,454.40 × 10,249.60
  4. Step 4: Simplify right side
    28,976.80x = 445,390,218.24
  5. Step 5: Solve for x
    x = 445,390,218.24/28,976.80
  6. Step 6: Final answer
    x = 15,370.58

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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.