Home / 18,990.25-26,213.83-16,997.24

Finding the Fourth Proportional to 18,990.25, 26,213.83 and 16,997.24

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Solution

The fourth proportional to 18,990.25, 26,213.83 and 16,997.24 is: 23,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.25 : 26,213.83 = 16,997.24 : x
  2. Step 2: Convert to fraction form
    18,990.25/26,213.83 = 16,997.24/x
  3. Step 3: Cross multiply
    18,990.25x = 26,213.83 × 16,997.24
  4. Step 4: Simplify right side
    18,990.25x = 445,562,782.87
  5. Step 5: Solve for x
    x = 445,562,782.87/18,990.25
  6. Step 6: Final answer
    x = 23,462.72

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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.