Home / 28,413.80-42,625.20-9,695.60

Finding the Fourth Proportional to 28,413.80, 42,625.20 and 9,695.60

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Solution

The fourth proportional to 28,413.80, 42,625.20 and 9,695.60 is: 14,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.80 : 42,625.20 = 9,695.60 : x
  2. Step 2: Convert to fraction form
    28,413.80/42,625.20 = 9,695.60/x
  3. Step 3: Cross multiply
    28,413.80x = 42,625.20 × 9,695.60
  4. Step 4: Simplify right side
    28,413.80x = 413,276,889.12
  5. Step 5: Solve for x
    x = 413,276,889.12/28,413.80
  6. Step 6: Final answer
    x = 14,544.94

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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.