Home / 28,413.24-39,223.62-18,868.20

Finding the Fourth Proportional to 28,413.24, 39,223.62 and 18,868.20

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Solution

The fourth proportional to 28,413.24, 39,223.62 and 18,868.20 is: 26,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.24 : 39,223.62 = 18,868.20 : x
  2. Step 2: Convert to fraction form
    28,413.24/39,223.62 = 18,868.20/x
  3. Step 3: Cross multiply
    28,413.24x = 39,223.62 × 18,868.20
  4. Step 4: Simplify right side
    28,413.24x = 740,079,106.88
  5. Step 5: Solve for x
    x = 740,079,106.88/28,413.24
  6. Step 6: Final answer
    x = 26,046.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.