Home / 20,964.02-31,435.20-6,171.02

Finding the Fourth Proportional to 20,964.02, 31,435.20 and 6,171.02

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Solution

The fourth proportional to 20,964.02, 31,435.20 and 6,171.02 is: 9,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.02 : 31,435.20 = 6,171.02 : x
  2. Step 2: Convert to fraction form
    20,964.02/31,435.20 = 6,171.02/x
  3. Step 3: Cross multiply
    20,964.02x = 31,435.20 × 6,171.02
  4. Step 4: Simplify right side
    20,964.02x = 193,987,247.90
  5. Step 5: Solve for x
    x = 193,987,247.90/20,964.02
  6. Step 6: Final answer
    x = 9,253.34

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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.