Home / 20,540.18-30,814.43-8,693.93

Finding the Fourth Proportional to 20,540.18, 30,814.43 and 8,693.93

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Solution

The fourth proportional to 20,540.18, 30,814.43 and 8,693.93 is: 13,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.18 : 30,814.43 = 8,693.93 : x
  2. Step 2: Convert to fraction form
    20,540.18/30,814.43 = 8,693.93/x
  3. Step 3: Cross multiply
    20,540.18x = 30,814.43 × 8,693.93
  4. Step 4: Simplify right side
    20,540.18x = 267,898,530.98
  5. Step 5: Solve for x
    x = 267,898,530.98/20,540.18
  6. Step 6: Final answer
    x = 13,042.66

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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.