Home / 47,842.38-71,764.92-12,782.07

Finding the Fourth Proportional to 47,842.38, 71,764.92 and 12,782.07

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Solution

The fourth proportional to 47,842.38, 71,764.92 and 12,782.07 is: 19,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,842.38 : 71,764.92 = 12,782.07 : x
  2. Step 2: Convert to fraction form
    47,842.38/71,764.92 = 12,782.07/x
  3. Step 3: Cross multiply
    47,842.38x = 71,764.92 × 12,782.07
  4. Step 4: Simplify right side
    47,842.38x = 917,304,230.98
  5. Step 5: Solve for x
    x = 917,304,230.98/47,842.38
  6. Step 6: Final answer
    x = 19,173.47

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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.