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Finding the Fourth Proportional to 27,293.20, 40,939.80 and 7,571.76

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Solution

The fourth proportional to 27,293.20, 40,939.80 and 7,571.76 is: 11,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,293.20 : 40,939.80 = 7,571.76 : x
  2. Step 2: Convert to fraction form
    27,293.20/40,939.80 = 7,571.76/x
  3. Step 3: Cross multiply
    27,293.20x = 40,939.80 × 7,571.76
  4. Step 4: Simplify right side
    27,293.20x = 309,986,340.05
  5. Step 5: Solve for x
    x = 309,986,340.05/27,293.20
  6. Step 6: Final answer
    x = 11,357.64

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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.