Home / 20,143.67-27,796.12-11,644.44

Finding the Fourth Proportional to 20,143.67, 27,796.12 and 11,644.44

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Solution

The fourth proportional to 20,143.67, 27,796.12 and 11,644.44 is: 16,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.67 : 27,796.12 = 11,644.44 : x
  2. Step 2: Convert to fraction form
    20,143.67/27,796.12 = 11,644.44/x
  3. Step 3: Cross multiply
    20,143.67x = 27,796.12 × 11,644.44
  4. Step 4: Simplify right side
    20,143.67x = 323,670,222.46
  5. Step 5: Solve for x
    x = 323,670,222.46/20,143.67
  6. Step 6: Final answer
    x = 16,068.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.