Home / 31,413.96-47,128.69-15,626.48

Finding the Fourth Proportional to 31,413.96, 47,128.69 and 15,626.48

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Solution

The fourth proportional to 31,413.96, 47,128.69 and 15,626.48 is: 23,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.96 : 47,128.69 = 15,626.48 : x
  2. Step 2: Convert to fraction form
    31,413.96/47,128.69 = 15,626.48/x
  3. Step 3: Cross multiply
    31,413.96x = 47,128.69 × 15,626.48
  4. Step 4: Simplify right side
    31,413.96x = 736,455,531.71
  5. Step 5: Solve for x
    x = 736,455,531.71/31,413.96
  6. Step 6: Final answer
    x = 23,443.58

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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.