Home / 31,481.19-47,221.73-21,590.48

Finding the Fourth Proportional to 31,481.19, 47,221.73 and 21,590.48

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Solution

The fourth proportional to 31,481.19, 47,221.73 and 21,590.48 is: 32,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.19 : 47,221.73 = 21,590.48 : x
  2. Step 2: Convert to fraction form
    31,481.19/47,221.73 = 21,590.48/x
  3. Step 3: Cross multiply
    31,481.19x = 47,221.73 × 21,590.48
  4. Step 4: Simplify right side
    31,481.19x = 1,019,540,029.64
  5. Step 5: Solve for x
    x = 1,019,540,029.64/31,481.19
  6. Step 6: Final answer
    x = 32,385.69

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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.