Home / 20,617.02-30,922.27-7,964.90

Finding the Fourth Proportional to 20,617.02, 30,922.27 and 7,964.90

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Solution

The fourth proportional to 20,617.02, 30,922.27 and 7,964.90 is: 11,946.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.02 : 30,922.27 = 7,964.90 : x
  2. Step 2: Convert to fraction form
    20,617.02/30,922.27 = 7,964.90/x
  3. Step 3: Cross multiply
    20,617.02x = 30,922.27 × 7,964.90
  4. Step 4: Simplify right side
    20,617.02x = 246,292,845.72
  5. Step 5: Solve for x
    x = 246,292,845.72/20,617.02
  6. Step 6: Final answer
    x = 11,946.09

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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.