Home / 31,481.10-47,204.37-21,622.86

Finding the Fourth Proportional to 31,481.10, 47,204.37 and 21,622.86

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Solution

The fourth proportional to 31,481.10, 47,204.37 and 21,622.86 is: 32,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.10 : 47,204.37 = 21,622.86 : x
  2. Step 2: Convert to fraction form
    31,481.10/47,204.37 = 21,622.86/x
  3. Step 3: Cross multiply
    31,481.10x = 47,204.37 × 21,622.86
  4. Step 4: Simplify right side
    31,481.10x = 1,020,693,483.90
  5. Step 5: Solve for x
    x = 1,020,693,483.90/31,481.10
  6. Step 6: Final answer
    x = 32,422.42

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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.