Home / 27,821.21-41,731.88-8,100.24

Finding the Fourth Proportional to 27,821.21, 41,731.88 and 8,100.24

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Solution

The fourth proportional to 27,821.21, 41,731.88 and 8,100.24 is: 12,150.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.21 : 41,731.88 = 8,100.24 : x
  2. Step 2: Convert to fraction form
    27,821.21/41,731.88 = 8,100.24/x
  3. Step 3: Cross multiply
    27,821.21x = 41,731.88 × 8,100.24
  4. Step 4: Simplify right side
    27,821.21x = 338,038,243.65
  5. Step 5: Solve for x
    x = 338,038,243.65/27,821.21
  6. Step 6: Final answer
    x = 12,150.38

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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.