Home / 27,773.22-41,668.20-12,990.72

Finding the Fourth Proportional to 27,773.22, 41,668.20 and 12,990.72

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Solution

The fourth proportional to 27,773.22, 41,668.20 and 12,990.72 is: 19,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,773.22 : 41,668.20 = 12,990.72 : x
  2. Step 2: Convert to fraction form
    27,773.22/41,668.20 = 12,990.72/x
  3. Step 3: Cross multiply
    27,773.22x = 41,668.20 × 12,990.72
  4. Step 4: Simplify right side
    27,773.22x = 541,299,919.10
  5. Step 5: Solve for x
    x = 541,299,919.10/27,773.22
  6. Step 6: Final answer
    x = 19,490.00

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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.