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Finding the Fourth Proportional to 27,089.28, 40,619.03 and 8,364.15

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Solution

The fourth proportional to 27,089.28, 40,619.03 and 8,364.15 is: 12,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,089.28 : 40,619.03 = 8,364.15 : x
  2. Step 2: Convert to fraction form
    27,089.28/40,619.03 = 8,364.15/x
  3. Step 3: Cross multiply
    27,089.28x = 40,619.03 × 8,364.15
  4. Step 4: Simplify right side
    27,089.28x = 339,743,617.95
  5. Step 5: Solve for x
    x = 339,743,617.95/27,089.28
  6. Step 6: Final answer
    x = 12,541.63

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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.