Home / 20,677.18-31,020.24-6,633.94

Finding the Fourth Proportional to 20,677.18, 31,020.24 and 6,633.94

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Solution

The fourth proportional to 20,677.18, 31,020.24 and 6,633.94 is: 9,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.18 : 31,020.24 = 6,633.94 : x
  2. Step 2: Convert to fraction form
    20,677.18/31,020.24 = 6,633.94/x
  3. Step 3: Cross multiply
    20,677.18x = 31,020.24 × 6,633.94
  4. Step 4: Simplify right side
    20,677.18x = 205,786,410.95
  5. Step 5: Solve for x
    x = 205,786,410.95/20,677.18
  6. Step 6: Final answer
    x = 9,952.34

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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.