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Finding the Fourth Proportional to 27,995.78, 41,993.60 and 9,275.87

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Solution

The fourth proportional to 27,995.78, 41,993.60 and 9,275.87 is: 13,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.78 : 41,993.60 = 9,275.87 : x
  2. Step 2: Convert to fraction form
    27,995.78/41,993.60 = 9,275.87/x
  3. Step 3: Cross multiply
    27,995.78x = 41,993.60 × 9,275.87
  4. Step 4: Simplify right side
    27,995.78x = 389,526,918.08
  5. Step 5: Solve for x
    x = 389,526,918.08/27,995.78
  6. Step 6: Final answer
    x = 13,913.78

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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.