Home / 31,936.76-47,910.91-13,206.62

Finding the Fourth Proportional to 31,936.76, 47,910.91 and 13,206.62

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Solution

The fourth proportional to 31,936.76, 47,910.91 and 13,206.62 is: 19,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936.76 : 47,910.91 = 13,206.62 : x
  2. Step 2: Convert to fraction form
    31,936.76/47,910.91 = 13,206.62/x
  3. Step 3: Cross multiply
    31,936.76x = 47,910.91 × 13,206.62
  4. Step 4: Simplify right side
    31,936.76x = 632,741,268.98
  5. Step 5: Solve for x
    x = 632,741,268.98/31,936.76
  6. Step 6: Final answer
    x = 19,812.32

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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.