Home / 28,413.41-39,200.98-18,348.65

Finding the Fourth Proportional to 28,413.41, 39,200.98 and 18,348.65

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Solution

The fourth proportional to 28,413.41, 39,200.98 and 18,348.65 is: 25,314.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.41 : 39,200.98 = 18,348.65 : x
  2. Step 2: Convert to fraction form
    28,413.41/39,200.98 = 18,348.65/x
  3. Step 3: Cross multiply
    28,413.41x = 39,200.98 × 18,348.65
  4. Step 4: Simplify right side
    28,413.41x = 719,285,182.62
  5. Step 5: Solve for x
    x = 719,285,182.62/28,413.41
  6. Step 6: Final answer
    x = 25,314.99

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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.