Home / 21,493.79-32,274.38-18,205.14

Finding the Fourth Proportional to 21,493.79, 32,274.38 and 18,205.14

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Solution

The fourth proportional to 21,493.79, 32,274.38 and 18,205.14 is: 27,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493.79 : 32,274.38 = 18,205.14 : x
  2. Step 2: Convert to fraction form
    21,493.79/32,274.38 = 18,205.14/x
  3. Step 3: Cross multiply
    21,493.79x = 32,274.38 × 18,205.14
  4. Step 4: Simplify right side
    21,493.79x = 587,559,651.83
  5. Step 5: Solve for x
    x = 587,559,651.83/21,493.79
  6. Step 6: Final answer
    x = 27,336.26

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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.