Home / 31,661.94-47,491.98-12,936.66

Finding the Fourth Proportional to 31,661.94, 47,491.98 and 12,936.66

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Solution

The fourth proportional to 31,661.94, 47,491.98 and 12,936.66 is: 19,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.94 : 47,491.98 = 12,936.66 : x
  2. Step 2: Convert to fraction form
    31,661.94/47,491.98 = 12,936.66/x
  3. Step 3: Cross multiply
    31,661.94x = 47,491.98 × 12,936.66
  4. Step 4: Simplify right side
    31,661.94x = 614,387,597.99
  5. Step 5: Solve for x
    x = 614,387,597.99/31,661.94
  6. Step 6: Final answer
    x = 19,404.61

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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.