Home / 21,136.20-31,710.30-10,593.51

Finding the Fourth Proportional to 21,136.20, 31,710.30 and 10,593.51

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Solution

The fourth proportional to 21,136.20, 31,710.30 and 10,593.51 is: 15,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.20 : 31,710.30 = 10,593.51 : x
  2. Step 2: Convert to fraction form
    21,136.20/31,710.30 = 10,593.51/x
  3. Step 3: Cross multiply
    21,136.20x = 31,710.30 × 10,593.51
  4. Step 4: Simplify right side
    21,136.20x = 335,923,380.15
  5. Step 5: Solve for x
    x = 335,923,380.15/21,136.20
  6. Step 6: Final answer
    x = 15,893.27

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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.