Home / 31,842.32-47,770.97-10,781.51

Finding the Fourth Proportional to 31,842.32, 47,770.97 and 10,781.51

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Solution

The fourth proportional to 31,842.32, 47,770.97 and 10,781.51 is: 16,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,842.32 : 47,770.97 = 10,781.51 : x
  2. Step 2: Convert to fraction form
    31,842.32/47,770.97 = 10,781.51/x
  3. Step 3: Cross multiply
    31,842.32x = 47,770.97 × 10,781.51
  4. Step 4: Simplify right side
    31,842.32x = 515,042,898.00
  5. Step 5: Solve for x
    x = 515,042,898.00/31,842.32
  6. Step 6: Final answer
    x = 16,174.79

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1.5x scale

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.