Home / 20,942.36-31,413.48-9,094.59

Finding the Fourth Proportional to 20,942.36, 31,413.48 and 9,094.59

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Solution

The fourth proportional to 20,942.36, 31,413.48 and 9,094.59 is: 13,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.36 : 31,413.48 = 9,094.59 : x
  2. Step 2: Convert to fraction form
    20,942.36/31,413.48 = 9,094.59/x
  3. Step 3: Cross multiply
    20,942.36x = 31,413.48 × 9,094.59
  4. Step 4: Simplify right side
    20,942.36x = 285,692,721.07
  5. Step 5: Solve for x
    x = 285,692,721.07/20,942.36
  6. Step 6: Final answer
    x = 13,641.86

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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.