Home / 31,899.97-47,814.71-13,169.68

Finding the Fourth Proportional to 31,899.97, 47,814.71 and 13,169.68

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Solution

The fourth proportional to 31,899.97, 47,814.71 and 13,169.68 is: 19,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.97 : 47,814.71 = 13,169.68 : x
  2. Step 2: Convert to fraction form
    31,899.97/47,814.71 = 13,169.68/x
  3. Step 3: Cross multiply
    31,899.97x = 47,814.71 × 13,169.68
  4. Step 4: Simplify right side
    31,899.97x = 629,704,343.38
  5. Step 5: Solve for x
    x = 629,704,343.38/31,899.97
  6. Step 6: Final answer
    x = 19,739.97

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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.