Home / 20,997.23-31,496.72-6,958.51

Finding the Fourth Proportional to 20,997.23, 31,496.72 and 6,958.51

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Solution

The fourth proportional to 20,997.23, 31,496.72 and 6,958.51 is: 10,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.23 : 31,496.72 = 6,958.51 : x
  2. Step 2: Convert to fraction form
    20,997.23/31,496.72 = 6,958.51/x
  3. Step 3: Cross multiply
    20,997.23x = 31,496.72 × 6,958.51
  4. Step 4: Simplify right side
    20,997.23x = 219,170,127.55
  5. Step 5: Solve for x
    x = 219,170,127.55/20,997.23
  6. Step 6: Final answer
    x = 10,438.05

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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.