Home / 17,731.28-26,621.22-11,137.88

Finding the Fourth Proportional to 17,731.28, 26,621.22 and 11,137.88

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Solution

The fourth proportional to 17,731.28, 26,621.22 and 11,137.88 is: 16,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,731.28 : 26,621.22 = 11,137.88 : x
  2. Step 2: Convert to fraction form
    17,731.28/26,621.22 = 11,137.88/x
  3. Step 3: Cross multiply
    17,731.28x = 26,621.22 × 11,137.88
  4. Step 4: Simplify right side
    17,731.28x = 296,503,953.81
  5. Step 5: Solve for x
    x = 296,503,953.81/17,731.28
  6. Step 6: Final answer
    x = 16,722.08

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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.