Home / 28,413.87-42,620.79-7,637.37

Finding the Fourth Proportional to 28,413.87, 42,620.79 and 7,637.37

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Solution

The fourth proportional to 28,413.87, 42,620.79 and 7,637.37 is: 11,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.87 : 42,620.79 = 7,637.37 : x
  2. Step 2: Convert to fraction form
    28,413.87/42,620.79 = 7,637.37/x
  3. Step 3: Cross multiply
    28,413.87x = 42,620.79 × 7,637.37
  4. Step 4: Simplify right side
    28,413.87x = 325,510,742.92
  5. Step 5: Solve for x
    x = 325,510,742.92/28,413.87
  6. Step 6: Final answer
    x = 11,456.05

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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.