Home / 22,812.75-31,481.60-12,876.75

Finding the Fourth Proportional to 22,812.75, 31,481.60 and 12,876.75

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Solution

The fourth proportional to 22,812.75, 31,481.60 and 12,876.75 is: 17,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.75 : 31,481.60 = 12,876.75 : x
  2. Step 2: Convert to fraction form
    22,812.75/31,481.60 = 12,876.75/x
  3. Step 3: Cross multiply
    22,812.75x = 31,481.60 × 12,876.75
  4. Step 4: Simplify right side
    22,812.75x = 405,380,628.42
  5. Step 5: Solve for x
    x = 405,380,628.42/22,812.75
  6. Step 6: Final answer
    x = 17,769.92

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1.5x scale

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.