Home / 20,938.23-31,413.03-6,147.03

Finding the Fourth Proportional to 20,938.23, 31,413.03 and 6,147.03

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Solution

The fourth proportional to 20,938.23, 31,413.03 and 6,147.03 is: 9,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,938.23 : 31,413.03 = 6,147.03 : x
  2. Step 2: Convert to fraction form
    20,938.23/31,413.03 = 6,147.03/x
  3. Step 3: Cross multiply
    20,938.23x = 31,413.03 × 6,147.03
  4. Step 4: Simplify right side
    20,938.23x = 193,096,837.80
  5. Step 5: Solve for x
    x = 193,096,837.80/20,938.23
  6. Step 6: Final answer
    x = 9,222.21

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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.