Home / 21,827.05-32,743.89-11,147.56

Finding the Fourth Proportional to 21,827.05, 32,743.89 and 11,147.56

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Solution

The fourth proportional to 21,827.05, 32,743.89 and 11,147.56 is: 16,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.05 : 32,743.89 = 11,147.56 : x
  2. Step 2: Convert to fraction form
    21,827.05/32,743.89 = 11,147.56/x
  3. Step 3: Cross multiply
    21,827.05x = 32,743.89 × 11,147.56
  4. Step 4: Simplify right side
    21,827.05x = 365,014,478.41
  5. Step 5: Solve for x
    x = 365,014,478.41/21,827.05
  6. Step 6: Final answer
    x = 16,723.03

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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.