Home / 21,817.24-32,721-10,124.08

Finding the Fourth Proportional to 21,817.24, 32,721 and 10,124.08

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Solution

The fourth proportional to 21,817.24, 32,721 and 10,124.08 is: 15,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817.24 : 32,721 = 10,124.08 : x
  2. Step 2: Convert to fraction form
    21,817.24/32,721 = 10,124.08/x
  3. Step 3: Cross multiply
    21,817.24x = 32,721 × 10,124.08
  4. Step 4: Simplify right side
    21,817.24x = 331,270,021.68
  5. Step 5: Solve for x
    x = 331,270,021.68/21,817.24
  6. Step 6: Final answer
    x = 15,183.86

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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.