Home / 31,739.87-47,612.15-10,679.82

Finding the Fourth Proportional to 31,739.87, 47,612.15 and 10,679.82

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Solution

The fourth proportional to 31,739.87, 47,612.15 and 10,679.82 is: 16,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.87 : 47,612.15 = 10,679.82 : x
  2. Step 2: Convert to fraction form
    31,739.87/47,612.15 = 10,679.82/x
  3. Step 3: Cross multiply
    31,739.87x = 47,612.15 × 10,679.82
  4. Step 4: Simplify right side
    31,739.87x = 508,489,059.99
  5. Step 5: Solve for x
    x = 508,489,059.99/31,739.87
  6. Step 6: Final answer
    x = 16,020.52

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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.