Home / 20,791.02-31,196.25-12,033.30

Finding the Fourth Proportional to 20,791.02, 31,196.25 and 12,033.30

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Solution

The fourth proportional to 20,791.02, 31,196.25 and 12,033.30 is: 18,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791.02 : 31,196.25 = 12,033.30 : x
  2. Step 2: Convert to fraction form
    20,791.02/31,196.25 = 12,033.30/x
  3. Step 3: Cross multiply
    20,791.02x = 31,196.25 × 12,033.30
  4. Step 4: Simplify right side
    20,791.02x = 375,393,835.13
  5. Step 5: Solve for x
    x = 375,393,835.13/20,791.02
  6. Step 6: Final answer
    x = 18,055.58

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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.