Home / 31,493.96-47,251.86-13,976.06

Finding the Fourth Proportional to 31,493.96, 47,251.86 and 13,976.06

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Solution

The fourth proportional to 31,493.96, 47,251.86 and 13,976.06 is: 20,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493.96 : 47,251.86 = 13,976.06 : x
  2. Step 2: Convert to fraction form
    31,493.96/47,251.86 = 13,976.06/x
  3. Step 3: Cross multiply
    31,493.96x = 47,251.86 × 13,976.06
  4. Step 4: Simplify right side
    31,493.96x = 660,394,830.47
  5. Step 5: Solve for x
    x = 660,394,830.47/31,493.96
  6. Step 6: Final answer
    x = 20,968.94

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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.