Home / 28,945.44-43,413.30-13,145.58

Finding the Fourth Proportional to 28,945.44, 43,413.30 and 13,145.58

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Solution

The fourth proportional to 28,945.44, 43,413.30 and 13,145.58 is: 19,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.44 : 43,413.30 = 13,145.58 : x
  2. Step 2: Convert to fraction form
    28,945.44/43,413.30 = 13,145.58/x
  3. Step 3: Cross multiply
    28,945.44x = 43,413.30 × 13,145.58
  4. Step 4: Simplify right side
    28,945.44x = 570,693,008.21
  5. Step 5: Solve for x
    x = 570,693,008.21/28,945.44
  6. Step 6: Final answer
    x = 19,716.16

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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.