Home / 20,997.83-31,496.70-6,957.90

Finding the Fourth Proportional to 20,997.83, 31,496.70 and 6,957.90

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Solution

The fourth proportional to 20,997.83, 31,496.70 and 6,957.90 is: 10,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.83 : 31,496.70 = 6,957.90 : x
  2. Step 2: Convert to fraction form
    20,997.83/31,496.70 = 6,957.90/x
  3. Step 3: Cross multiply
    20,997.83x = 31,496.70 × 6,957.90
  4. Step 4: Simplify right side
    20,997.83x = 219,150,888.93
  5. Step 5: Solve for x
    x = 219,150,888.93/20,997.83
  6. Step 6: Final answer
    x = 10,436.84

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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.