Home / 21,905.40-32,850.90-8,052.60

Finding the Fourth Proportional to 21,905.40, 32,850.90 and 8,052.60

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Solution

The fourth proportional to 21,905.40, 32,850.90 and 8,052.60 is: 12,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.40 : 32,850.90 = 8,052.60 : x
  2. Step 2: Convert to fraction form
    21,905.40/32,850.90 = 8,052.60/x
  3. Step 3: Cross multiply
    21,905.40x = 32,850.90 × 8,052.60
  4. Step 4: Simplify right side
    21,905.40x = 264,535,157.34
  5. Step 5: Solve for x
    x = 264,535,157.34/21,905.40
  6. Step 6: Final answer
    x = 12,076.25

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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.