Home / 20,664.76-28,517.88-11,233.84

Finding the Fourth Proportional to 20,664.76, 28,517.88 and 11,233.84

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Solution

The fourth proportional to 20,664.76, 28,517.88 and 11,233.84 is: 15,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.76 : 28,517.88 = 11,233.84 : x
  2. Step 2: Convert to fraction form
    20,664.76/28,517.88 = 11,233.84/x
  3. Step 3: Cross multiply
    20,664.76x = 28,517.88 × 11,233.84
  4. Step 4: Simplify right side
    20,664.76x = 320,365,301.06
  5. Step 5: Solve for x
    x = 320,365,301.06/20,664.76
  6. Step 6: Final answer
    x = 15,502.98

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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.