Home / 21,519.72-32,280.48-6,728.94

Finding the Fourth Proportional to 21,519.72, 32,280.48 and 6,728.94

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Solution

The fourth proportional to 21,519.72, 32,280.48 and 6,728.94 is: 10,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.72 : 32,280.48 = 6,728.94 : x
  2. Step 2: Convert to fraction form
    21,519.72/32,280.48 = 6,728.94/x
  3. Step 3: Cross multiply
    21,519.72x = 32,280.48 × 6,728.94
  4. Step 4: Simplify right side
    21,519.72x = 217,213,413.09
  5. Step 5: Solve for x
    x = 217,213,413.09/21,519.72
  6. Step 6: Final answer
    x = 10,093.69

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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.