Home / 27,181.42-40,719.08-18,727.98

Finding the Fourth Proportional to 27,181.42, 40,719.08 and 18,727.98

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Solution

The fourth proportional to 27,181.42, 40,719.08 and 18,727.98 is: 28,055.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,181.42 : 40,719.08 = 18,727.98 : x
  2. Step 2: Convert to fraction form
    27,181.42/40,719.08 = 18,727.98/x
  3. Step 3: Cross multiply
    27,181.42x = 40,719.08 × 18,727.98
  4. Step 4: Simplify right side
    27,181.42x = 762,586,115.86
  5. Step 5: Solve for x
    x = 762,586,115.86/27,181.42
  6. Step 6: Final answer
    x = 28,055.42

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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.