Home / 27,418.80-41,128.20-7,700.70

Finding the Fourth Proportional to 27,418.80, 41,128.20 and 7,700.70

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Solution

The fourth proportional to 27,418.80, 41,128.20 and 7,700.70 is: 11,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,418.80 : 41,128.20 = 7,700.70 : x
  2. Step 2: Convert to fraction form
    27,418.80/41,128.20 = 7,700.70/x
  3. Step 3: Cross multiply
    27,418.80x = 41,128.20 × 7,700.70
  4. Step 4: Simplify right side
    27,418.80x = 316,715,929.74
  5. Step 5: Solve for x
    x = 316,715,929.74/27,418.80
  6. Step 6: Final answer
    x = 11,551.05

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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.