Home / 28,820.08-43,249.56-11,287.72

Finding the Fourth Proportional to 28,820.08, 43,249.56 and 11,287.72

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Solution

The fourth proportional to 28,820.08, 43,249.56 and 11,287.72 is: 16,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.08 : 43,249.56 = 11,287.72 : x
  2. Step 2: Convert to fraction form
    28,820.08/43,249.56 = 11,287.72/x
  3. Step 3: Cross multiply
    28,820.08x = 43,249.56 × 11,287.72
  4. Step 4: Simplify right side
    28,820.08x = 488,188,923.40
  5. Step 5: Solve for x
    x = 488,188,923.40/28,820.08
  6. Step 6: Final answer
    x = 16,939.19

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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.