Home / 20,840.66-31,260.45-6,610.04

Finding the Fourth Proportional to 20,840.66, 31,260.45 and 6,610.04

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Solution

The fourth proportional to 20,840.66, 31,260.45 and 6,610.04 is: 9,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.66 : 31,260.45 = 6,610.04 : x
  2. Step 2: Convert to fraction form
    20,840.66/31,260.45 = 6,610.04/x
  3. Step 3: Cross multiply
    20,840.66x = 31,260.45 × 6,610.04
  4. Step 4: Simplify right side
    20,840.66x = 206,632,824.92
  5. Step 5: Solve for x
    x = 206,632,824.92/20,840.66
  6. Step 6: Final answer
    x = 9,914.89

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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.