Home / 28,350.72-39,118.95-16,413.48

Finding the Fourth Proportional to 28,350.72, 39,118.95 and 16,413.48

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Solution

The fourth proportional to 28,350.72, 39,118.95 and 16,413.48 is: 22,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.72 : 39,118.95 = 16,413.48 : x
  2. Step 2: Convert to fraction form
    28,350.72/39,118.95 = 16,413.48/x
  3. Step 3: Cross multiply
    28,350.72x = 39,118.95 × 16,413.48
  4. Step 4: Simplify right side
    28,350.72x = 642,078,103.45
  5. Step 5: Solve for x
    x = 642,078,103.45/28,350.72
  6. Step 6: Final answer
    x = 22,647.68

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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.