Home / 31,785.04-47,673.44-8,413.28

Finding the Fourth Proportional to 31,785.04, 47,673.44 and 8,413.28

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Solution

The fourth proportional to 31,785.04, 47,673.44 and 8,413.28 is: 12,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.04 : 47,673.44 = 8,413.28 : x
  2. Step 2: Convert to fraction form
    31,785.04/47,673.44 = 8,413.28/x
  3. Step 3: Cross multiply
    31,785.04x = 47,673.44 × 8,413.28
  4. Step 4: Simplify right side
    31,785.04x = 401,089,999.28
  5. Step 5: Solve for x
    x = 401,089,999.28/31,785.04
  6. Step 6: Final answer
    x = 12,618.83

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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.