Home / 21,608.20-32,436.60-16,699.60

Finding the Fourth Proportional to 21,608.20, 32,436.60 and 16,699.60

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Solution

The fourth proportional to 21,608.20, 32,436.60 and 16,699.60 is: 25,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.20 : 32,436.60 = 16,699.60 : x
  2. Step 2: Convert to fraction form
    21,608.20/32,436.60 = 16,699.60/x
  3. Step 3: Cross multiply
    21,608.20x = 32,436.60 × 16,699.60
  4. Step 4: Simplify right side
    21,608.20x = 541,678,245.36
  5. Step 5: Solve for x
    x = 541,678,245.36/21,608.20
  6. Step 6: Final answer
    x = 25,068.18

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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.