Home / 47,413.78-71,124.74-12,353.38

Finding the Fourth Proportional to 47,413.78, 71,124.74 and 12,353.38

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Solution

The fourth proportional to 47,413.78, 71,124.74 and 12,353.38 is: 18,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,413.78 : 71,124.74 = 12,353.38 : x
  2. Step 2: Convert to fraction form
    47,413.78/71,124.74 = 12,353.38/x
  3. Step 3: Cross multiply
    47,413.78x = 71,124.74 × 12,353.38
  4. Step 4: Simplify right side
    47,413.78x = 878,630,940.62
  5. Step 5: Solve for x
    x = 878,630,940.62/47,413.78
  6. Step 6: Final answer
    x = 18,531.13

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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.