Home / 31,190.83-46,786.45-12,472.44

Finding the Fourth Proportional to 31,190.83, 46,786.45 and 12,472.44

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Solution

The fourth proportional to 31,190.83, 46,786.45 and 12,472.44 is: 18,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.83 : 46,786.45 = 12,472.44 : x
  2. Step 2: Convert to fraction form
    31,190.83/46,786.45 = 12,472.44/x
  3. Step 3: Cross multiply
    31,190.83x = 46,786.45 × 12,472.44
  4. Step 4: Simplify right side
    31,190.83x = 583,541,276.22
  5. Step 5: Solve for x
    x = 583,541,276.22/31,190.83
  6. Step 6: Final answer
    x = 18,708.74

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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.