Home / 20,736.59-31,086.47-8,083.43

Finding the Fourth Proportional to 20,736.59, 31,086.47 and 8,083.43

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Solution

The fourth proportional to 20,736.59, 31,086.47 and 8,083.43 is: 12,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.59 : 31,086.47 = 8,083.43 : x
  2. Step 2: Convert to fraction form
    20,736.59/31,086.47 = 8,083.43/x
  3. Step 3: Cross multiply
    20,736.59x = 31,086.47 × 8,083.43
  4. Step 4: Simplify right side
    20,736.59x = 251,285,263.77
  5. Step 5: Solve for x
    x = 251,285,263.77/20,736.59
  6. Step 6: Final answer
    x = 12,117.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.