Home / 27,145.82-40,737.96-12,356.64

Finding the Fourth Proportional to 27,145.82, 40,737.96 and 12,356.64

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Solution

The fourth proportional to 27,145.82, 40,737.96 and 12,356.64 is: 18,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.82 : 40,737.96 = 12,356.64 : x
  2. Step 2: Convert to fraction form
    27,145.82/40,737.96 = 12,356.64/x
  3. Step 3: Cross multiply
    27,145.82x = 40,737.96 × 12,356.64
  4. Step 4: Simplify right side
    27,145.82x = 503,384,306.05
  5. Step 5: Solve for x
    x = 503,384,306.05/27,145.82
  6. Step 6: Final answer
    x = 18,543.72

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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.