Home / 21,609.20-32,413.80-17,672.60

Finding the Fourth Proportional to 21,609.20, 32,413.80 and 17,672.60

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Solution

The fourth proportional to 21,609.20, 32,413.80 and 17,672.60 is: 26,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.20 : 32,413.80 = 17,672.60 : x
  2. Step 2: Convert to fraction form
    21,609.20/32,413.80 = 17,672.60/x
  3. Step 3: Cross multiply
    21,609.20x = 32,413.80 × 17,672.60
  4. Step 4: Simplify right side
    21,609.20x = 572,836,121.88
  5. Step 5: Solve for x
    x = 572,836,121.88/21,609.20
  6. Step 6: Final answer
    x = 26,508.90

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1.5x scale

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.