Home / 39,951.22-55,135.80-22,961.39

Finding the Fourth Proportional to 39,951.22, 55,135.80 and 22,961.39

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Solution

The fourth proportional to 39,951.22, 55,135.80 and 22,961.39 is: 31,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.22 : 55,135.80 = 22,961.39 : x
  2. Step 2: Convert to fraction form
    39,951.22/55,135.80 = 22,961.39/x
  3. Step 3: Cross multiply
    39,951.22x = 55,135.80 × 22,961.39
  4. Step 4: Simplify right side
    39,951.22x = 1,265,994,606.76
  5. Step 5: Solve for x
    x = 1,265,994,606.76/39,951.22
  6. Step 6: Final answer
    x = 31,688.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.