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Finding the Fourth Proportional to 27,163.79, 40,737.41 and 18,784.17

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Solution

The fourth proportional to 27,163.79, 40,737.41 and 18,784.17 is: 28,170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,163.79 : 40,737.41 = 18,784.17 : x
  2. Step 2: Convert to fraction form
    27,163.79/40,737.41 = 18,784.17/x
  3. Step 3: Cross multiply
    27,163.79x = 40,737.41 × 18,784.17
  4. Step 4: Simplify right side
    27,163.79x = 765,218,340.88
  5. Step 5: Solve for x
    x = 765,218,340.88/27,163.79
  6. Step 6: Final answer
    x = 28,170.53

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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.