Home / 23,187.76-31,996.20-13,754.50

Finding the Fourth Proportional to 23,187.76, 31,996.20 and 13,754.50

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Solution

The fourth proportional to 23,187.76, 31,996.20 and 13,754.50 is: 18,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.76 : 31,996.20 = 13,754.50 : x
  2. Step 2: Convert to fraction form
    23,187.76/31,996.20 = 13,754.50/x
  3. Step 3: Cross multiply
    23,187.76x = 31,996.20 × 13,754.50
  4. Step 4: Simplify right side
    23,187.76x = 440,091,732.90
  5. Step 5: Solve for x
    x = 440,091,732.90/23,187.76
  6. Step 6: Final answer
    x = 18,979.48

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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.