Home / 31,821.75-47,720.62-25,566.39

Finding the Fourth Proportional to 31,821.75, 47,720.62 and 25,566.39

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Solution

The fourth proportional to 31,821.75, 47,720.62 and 25,566.39 is: 38,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.75 : 47,720.62 = 25,566.39 : x
  2. Step 2: Convert to fraction form
    31,821.75/47,720.62 = 25,566.39/x
  3. Step 3: Cross multiply
    31,821.75x = 47,720.62 × 25,566.39
  4. Step 4: Simplify right side
    31,821.75x = 1,220,043,981.96
  5. Step 5: Solve for x
    x = 1,220,043,981.96/31,821.75
  6. Step 6: Final answer
    x = 38,339.94

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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.