Home / 28,413.20-42,619.80-27,927.20

Finding the Fourth Proportional to 28,413.20, 42,619.80 and 27,927.20

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Solution

The fourth proportional to 28,413.20, 42,619.80 and 27,927.20 is: 41,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.20 : 42,619.80 = 27,927.20 : x
  2. Step 2: Convert to fraction form
    28,413.20/42,619.80 = 27,927.20/x
  3. Step 3: Cross multiply
    28,413.20x = 42,619.80 × 27,927.20
  4. Step 4: Simplify right side
    28,413.20x = 1,190,251,678.56
  5. Step 5: Solve for x
    x = 1,190,251,678.56/28,413.20
  6. Step 6: Final answer
    x = 41,890.80

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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.