Home / 20,234.12-27,926.76-13,072.88

Finding the Fourth Proportional to 20,234.12, 27,926.76 and 13,072.88

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Solution

The fourth proportional to 20,234.12, 27,926.76 and 13,072.88 is: 18,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.12 : 27,926.76 = 13,072.88 : x
  2. Step 2: Convert to fraction form
    20,234.12/27,926.76 = 13,072.88/x
  3. Step 3: Cross multiply
    20,234.12x = 27,926.76 × 13,072.88
  4. Step 4: Simplify right side
    20,234.12x = 365,083,182.27
  5. Step 5: Solve for x
    x = 365,083,182.27/20,234.12
  6. Step 6: Final answer
    x = 18,042.95

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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.