Home / 19,832.66-29,756.78-8,731.56

Finding the Fourth Proportional to 19,832.66, 29,756.78 and 8,731.56

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Solution

The fourth proportional to 19,832.66, 29,756.78 and 8,731.56 is: 13,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,832.66 : 29,756.78 = 8,731.56 : x
  2. Step 2: Convert to fraction form
    19,832.66/29,756.78 = 8,731.56/x
  3. Step 3: Cross multiply
    19,832.66x = 29,756.78 × 8,731.56
  4. Step 4: Simplify right side
    19,832.66x = 259,823,109.98
  5. Step 5: Solve for x
    x = 259,823,109.98/19,832.66
  6. Step 6: Final answer
    x = 13,100.77

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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.