Home / 21,912.72-32,869.12-6,331.60

Finding the Fourth Proportional to 21,912.72, 32,869.12 and 6,331.60

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Solution

The fourth proportional to 21,912.72, 32,869.12 and 6,331.60 is: 9,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.72 : 32,869.12 = 6,331.60 : x
  2. Step 2: Convert to fraction form
    21,912.72/32,869.12 = 6,331.60/x
  3. Step 3: Cross multiply
    21,912.72x = 32,869.12 × 6,331.60
  4. Step 4: Simplify right side
    21,912.72x = 208,114,120.19
  5. Step 5: Solve for x
    x = 208,114,120.19/21,912.72
  6. Step 6: Final answer
    x = 9,497.41

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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.