Home / 21,489.51-32,241.27-18,015.84

Finding the Fourth Proportional to 21,489.51, 32,241.27 and 18,015.84

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Solution

The fourth proportional to 21,489.51, 32,241.27 and 18,015.84 is: 27,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.51 : 32,241.27 = 18,015.84 : x
  2. Step 2: Convert to fraction form
    21,489.51/32,241.27 = 18,015.84/x
  3. Step 3: Cross multiply
    21,489.51x = 32,241.27 × 18,015.84
  4. Step 4: Simplify right side
    21,489.51x = 580,853,561.72
  5. Step 5: Solve for x
    x = 580,853,561.72/21,489.51
  6. Step 6: Final answer
    x = 27,029.63

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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.