Home / 28,133.40-42,202.33-9,413.54

Finding the Fourth Proportional to 28,133.40, 42,202.33 and 9,413.54

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Solution

The fourth proportional to 28,133.40, 42,202.33 and 9,413.54 is: 14,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.40 : 42,202.33 = 9,413.54 : x
  2. Step 2: Convert to fraction form
    28,133.40/42,202.33 = 9,413.54/x
  3. Step 3: Cross multiply
    28,133.40x = 42,202.33 × 9,413.54
  4. Step 4: Simplify right side
    28,133.40x = 397,273,110.54
  5. Step 5: Solve for x
    x = 397,273,110.54/28,133.40
  6. Step 6: Final answer
    x = 14,121.05

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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.