Home / 21,069.89-31,601.99-6,276.05

Finding the Fourth Proportional to 21,069.89, 31,601.99 and 6,276.05

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Solution

The fourth proportional to 21,069.89, 31,601.99 and 6,276.05 is: 9,413.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.89 : 31,601.99 = 6,276.05 : x
  2. Step 2: Convert to fraction form
    21,069.89/31,601.99 = 6,276.05/x
  3. Step 3: Cross multiply
    21,069.89x = 31,601.99 × 6,276.05
  4. Step 4: Simplify right side
    21,069.89x = 198,335,511.33
  5. Step 5: Solve for x
    x = 198,335,511.33/21,069.89
  6. Step 6: Final answer
    x = 9,413.22

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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.