Home / 27,979.80-41,964.90-10,440.60

Finding the Fourth Proportional to 27,979.80, 41,964.90 and 10,440.60

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Solution

The fourth proportional to 27,979.80, 41,964.90 and 10,440.60 is: 15,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.80 : 41,964.90 = 10,440.60 : x
  2. Step 2: Convert to fraction form
    27,979.80/41,964.90 = 10,440.60/x
  3. Step 3: Cross multiply
    27,979.80x = 41,964.90 × 10,440.60
  4. Step 4: Simplify right side
    27,979.80x = 438,138,734.94
  5. Step 5: Solve for x
    x = 438,138,734.94/27,979.80
  6. Step 6: Final answer
    x = 15,659.11

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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.