Home / 20,906.23-31,360.29-6,116.41

Finding the Fourth Proportional to 20,906.23, 31,360.29 and 6,116.41

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Solution

The fourth proportional to 20,906.23, 31,360.29 and 6,116.41 is: 9,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.23 : 31,360.29 = 6,116.41 : x
  2. Step 2: Convert to fraction form
    20,906.23/31,360.29 = 6,116.41/x
  3. Step 3: Cross multiply
    20,906.23x = 31,360.29 × 6,116.41
  4. Step 4: Simplify right side
    20,906.23x = 191,812,424.83
  5. Step 5: Solve for x
    x = 191,812,424.83/20,906.23
  6. Step 6: Final answer
    x = 9,174.89

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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.