Home / 22,680.60-31,299.75-12,608.66

Finding the Fourth Proportional to 22,680.60, 31,299.75 and 12,608.66

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Solution

The fourth proportional to 22,680.60, 31,299.75 and 12,608.66 is: 17,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,680.60 : 31,299.75 = 12,608.66 : x
  2. Step 2: Convert to fraction form
    22,680.60/31,299.75 = 12,608.66/x
  3. Step 3: Cross multiply
    22,680.60x = 31,299.75 × 12,608.66
  4. Step 4: Simplify right side
    22,680.60x = 394,647,749.34
  5. Step 5: Solve for x
    x = 394,647,749.34/22,680.60
  6. Step 6: Final answer
    x = 17,400.23

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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.