Home / 27,979.12-41,975.94-12,393.04

Finding the Fourth Proportional to 27,979.12, 41,975.94 and 12,393.04

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Solution

The fourth proportional to 27,979.12, 41,975.94 and 12,393.04 is: 18,592.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.12 : 41,975.94 = 12,393.04 : x
  2. Step 2: Convert to fraction form
    27,979.12/41,975.94 = 12,393.04/x
  3. Step 3: Cross multiply
    27,979.12x = 41,975.94 × 12,393.04
  4. Step 4: Simplify right side
    27,979.12x = 520,209,503.46
  5. Step 5: Solve for x
    x = 520,209,503.46/27,979.12
  6. Step 6: Final answer
    x = 18,592.78

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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.