Home / 18,561.85-27,842.82-4,521.88

Finding the Fourth Proportional to 18,561.85, 27,842.82 and 4,521.88

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Solution

The fourth proportional to 18,561.85, 27,842.82 and 4,521.88 is: 6,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.85 : 27,842.82 = 4,521.88 : x
  2. Step 2: Convert to fraction form
    18,561.85/27,842.82 = 4,521.88/x
  3. Step 3: Cross multiply
    18,561.85x = 27,842.82 × 4,521.88
  4. Step 4: Simplify right side
    18,561.85x = 125,901,890.90
  5. Step 5: Solve for x
    x = 125,901,890.90/18,561.85
  6. Step 6: Final answer
    x = 6,782.83

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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.