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Finding the Fourth Proportional to 27,993.67, 41,933.80 and 12,979.65

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Solution

The fourth proportional to 27,993.67, 41,933.80 and 12,979.65 is: 19,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.67 : 41,933.80 = 12,979.65 : x
  2. Step 2: Convert to fraction form
    27,993.67/41,933.80 = 12,979.65/x
  3. Step 3: Cross multiply
    27,993.67x = 41,933.80 × 12,979.65
  4. Step 4: Simplify right side
    27,993.67x = 544,286,047.17
  5. Step 5: Solve for x
    x = 544,286,047.17/27,993.67
  6. Step 6: Final answer
    x = 19,443.18

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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.