Home / 20,873.03-31,301.75-8,388.83

Finding the Fourth Proportional to 20,873.03, 31,301.75 and 8,388.83

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Solution

The fourth proportional to 20,873.03, 31,301.75 and 8,388.83 is: 12,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.03 : 31,301.75 = 8,388.83 : x
  2. Step 2: Convert to fraction form
    20,873.03/31,301.75 = 8,388.83/x
  3. Step 3: Cross multiply
    20,873.03x = 31,301.75 × 8,388.83
  4. Step 4: Simplify right side
    20,873.03x = 262,584,861.00
  5. Step 5: Solve for x
    x = 262,584,861.00/20,873.03
  6. Step 6: Final answer
    x = 12,580.11

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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.