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Finding the Fourth Proportional to 27,879.35, 41,810.20 and 9,156.30

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Solution

The fourth proportional to 27,879.35, 41,810.20 and 9,156.30 is: 13,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.35 : 41,810.20 = 9,156.30 : x
  2. Step 2: Convert to fraction form
    27,879.35/41,810.20 = 9,156.30/x
  3. Step 3: Cross multiply
    27,879.35x = 41,810.20 × 9,156.30
  4. Step 4: Simplify right side
    27,879.35x = 382,826,525.21
  5. Step 5: Solve for x
    x = 382,826,525.21/27,879.35
  6. Step 6: Final answer
    x = 13,731.55

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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.