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Finding the Fourth Proportional to 37,413.57, 51,631.81 and 20,418.91

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Solution

The fourth proportional to 37,413.57, 51,631.81 and 20,418.91 is: 28,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,413.57 : 51,631.81 = 20,418.91 : x
  2. Step 2: Convert to fraction form
    37,413.57/51,631.81 = 20,418.91/x
  3. Step 3: Cross multiply
    37,413.57x = 51,631.81 × 20,418.91
  4. Step 4: Simplify right side
    37,413.57x = 1,054,265,281.53
  5. Step 5: Solve for x
    x = 1,054,265,281.53/37,413.57
  6. Step 6: Final answer
    x = 28,178.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.