Home / 20,985.01-31,481.83-6,192.52

Finding the Fourth Proportional to 20,985.01, 31,481.83 and 6,192.52

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Solution

The fourth proportional to 20,985.01, 31,481.83 and 6,192.52 is: 9,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.01 : 31,481.83 = 6,192.52 : x
  2. Step 2: Convert to fraction form
    20,985.01/31,481.83 = 6,192.52/x
  3. Step 3: Cross multiply
    20,985.01x = 31,481.83 × 6,192.52
  4. Step 4: Simplify right side
    20,985.01x = 194,951,790.95
  5. Step 5: Solve for x
    x = 194,951,790.95/20,985.01
  6. Step 6: Final answer
    x = 9,290.05

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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.