Home / 27,847.86-41,780.46-9,128.04

Finding the Fourth Proportional to 27,847.86, 41,780.46 and 9,128.04

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Solution

The fourth proportional to 27,847.86, 41,780.46 and 9,128.04 is: 13,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.86 : 41,780.46 = 9,128.04 : x
  2. Step 2: Convert to fraction form
    27,847.86/41,780.46 = 9,128.04/x
  3. Step 3: Cross multiply
    27,847.86x = 41,780.46 × 9,128.04
  4. Step 4: Simplify right side
    27,847.86x = 381,373,710.10
  5. Step 5: Solve for x
    x = 381,373,710.10/27,847.86
  6. Step 6: Final answer
    x = 13,694.90

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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.