Home / 20,789.76-31,190.16-5,998.44

Finding the Fourth Proportional to 20,789.76, 31,190.16 and 5,998.44

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Solution

The fourth proportional to 20,789.76, 31,190.16 and 5,998.44 is: 8,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,789.76 : 31,190.16 = 5,998.44 : x
  2. Step 2: Convert to fraction form
    20,789.76/31,190.16 = 5,998.44/x
  3. Step 3: Cross multiply
    20,789.76x = 31,190.16 × 5,998.44
  4. Step 4: Simplify right side
    20,789.76x = 187,092,303.35
  5. Step 5: Solve for x
    x = 187,092,303.35/20,789.76
  6. Step 6: Final answer
    x = 8,999.25

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1.5x scale

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.