Home / 20,273.52-30,413.40-7,122.96

Finding the Fourth Proportional to 20,273.52, 30,413.40 and 7,122.96

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Solution

The fourth proportional to 20,273.52, 30,413.40 and 7,122.96 is: 10,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.52 : 30,413.40 = 7,122.96 : x
  2. Step 2: Convert to fraction form
    20,273.52/30,413.40 = 7,122.96/x
  3. Step 3: Cross multiply
    20,273.52x = 30,413.40 × 7,122.96
  4. Step 4: Simplify right side
    20,273.52x = 216,633,431.66
  5. Step 5: Solve for x
    x = 216,633,431.66/20,273.52
  6. Step 6: Final answer
    x = 10,685.54

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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.