Home / 21,778.10-32,683.59-15,949.82

Finding the Fourth Proportional to 21,778.10, 32,683.59 and 15,949.82

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Solution

The fourth proportional to 21,778.10, 32,683.59 and 15,949.82 is: 23,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.10 : 32,683.59 = 15,949.82 : x
  2. Step 2: Convert to fraction form
    21,778.10/32,683.59 = 15,949.82/x
  3. Step 3: Cross multiply
    21,778.10x = 32,683.59 × 15,949.82
  4. Step 4: Simplify right side
    21,778.10x = 521,297,377.45
  5. Step 5: Solve for x
    x = 521,297,377.45/21,778.10
  6. Step 6: Final answer
    x = 23,936.77

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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.