Home / 31,836.72-47,721.79-17,776.13

Finding the Fourth Proportional to 31,836.72, 47,721.79 and 17,776.13

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Solution

The fourth proportional to 31,836.72, 47,721.79 and 17,776.13 is: 26,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.72 : 47,721.79 = 17,776.13 : x
  2. Step 2: Convert to fraction form
    31,836.72/47,721.79 = 17,776.13/x
  3. Step 3: Cross multiply
    31,836.72x = 47,721.79 × 17,776.13
  4. Step 4: Simplify right side
    31,836.72x = 848,308,817.74
  5. Step 5: Solve for x
    x = 848,308,817.74/31,836.72
  6. Step 6: Final answer
    x = 26,645.61

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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.