Home / 20,540.44-28,333.02-12,151

Finding the Fourth Proportional to 20,540.44, 28,333.02 and 12,151

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Solution

The fourth proportional to 20,540.44, 28,333.02 and 12,151 is: 16,760.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.44 : 28,333.02 = 12,151 : x
  2. Step 2: Convert to fraction form
    20,540.44/28,333.02 = 12,151/x
  3. Step 3: Cross multiply
    20,540.44x = 28,333.02 × 12,151
  4. Step 4: Simplify right side
    20,540.44x = 344,274,526.02
  5. Step 5: Solve for x
    x = 344,274,526.02/20,540.44
  6. Step 6: Final answer
    x = 16,760.82

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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.