Home / 20,544.72-28,351.68-11,592.21

Finding the Fourth Proportional to 20,544.72, 28,351.68 and 11,592.21

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Solution

The fourth proportional to 20,544.72, 28,351.68 and 11,592.21 is: 15,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.72 : 28,351.68 = 11,592.21 : x
  2. Step 2: Convert to fraction form
    20,544.72/28,351.68 = 11,592.21/x
  3. Step 3: Cross multiply
    20,544.72x = 28,351.68 × 11,592.21
  4. Step 4: Simplify right side
    20,544.72x = 328,658,628.41
  5. Step 5: Solve for x
    x = 328,658,628.41/20,544.72
  6. Step 6: Final answer
    x = 15,997.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.