Home / 21,709.29-32,489.94-18,203.25

Finding the Fourth Proportional to 21,709.29, 32,489.94 and 18,203.25

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Solution

The fourth proportional to 21,709.29, 32,489.94 and 18,203.25 is: 27,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.29 : 32,489.94 = 18,203.25 : x
  2. Step 2: Convert to fraction form
    21,709.29/32,489.94 = 18,203.25/x
  3. Step 3: Cross multiply
    21,709.29x = 32,489.94 × 18,203.25
  4. Step 4: Simplify right side
    21,709.29x = 591,422,500.31
  5. Step 5: Solve for x
    x = 591,422,500.31/21,709.29
  6. Step 6: Final answer
    x = 27,242.83

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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.