Home / 20,622.78-30,935.90-6,584.81

Finding the Fourth Proportional to 20,622.78, 30,935.90 and 6,584.81

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Solution

The fourth proportional to 20,622.78, 30,935.90 and 6,584.81 is: 9,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.78 : 30,935.90 = 6,584.81 : x
  2. Step 2: Convert to fraction form
    20,622.78/30,935.90 = 6,584.81/x
  3. Step 3: Cross multiply
    20,622.78x = 30,935.90 × 6,584.81
  4. Step 4: Simplify right side
    20,622.78x = 203,707,023.68
  5. Step 5: Solve for x
    x = 203,707,023.68/20,622.78
  6. Step 6: Final answer
    x = 9,877.77

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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.