Home / 27,219.12-40,850.40-18,514.80

Finding the Fourth Proportional to 27,219.12, 40,850.40 and 18,514.80

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Solution

The fourth proportional to 27,219.12, 40,850.40 and 18,514.80 is: 27,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.12 : 40,850.40 = 18,514.80 : x
  2. Step 2: Convert to fraction form
    27,219.12/40,850.40 = 18,514.80/x
  3. Step 3: Cross multiply
    27,219.12x = 40,850.40 × 18,514.80
  4. Step 4: Simplify right side
    27,219.12x = 756,336,985.92
  5. Step 5: Solve for x
    x = 756,336,985.92/27,219.12
  6. Step 6: Final answer
    x = 27,786.97

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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.