Home / 20,735.45-28,615.92-11,663.66

Finding the Fourth Proportional to 20,735.45, 28,615.92 and 11,663.66

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Solution

The fourth proportional to 20,735.45, 28,615.92 and 11,663.66 is: 16,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.45 : 28,615.92 = 11,663.66 : x
  2. Step 2: Convert to fraction form
    20,735.45/28,615.92 = 11,663.66/x
  3. Step 3: Cross multiply
    20,735.45x = 28,615.92 × 11,663.66
  4. Step 4: Simplify right side
    20,735.45x = 333,766,218.39
  5. Step 5: Solve for x
    x = 333,766,218.39/20,735.45
  6. Step 6: Final answer
    x = 16,096.41

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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.