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Finding the Fourth Proportional to 30,262.63, 41,750.94 and 18,772.21

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Solution

The fourth proportional to 30,262.63, 41,750.94 and 18,772.21 is: 25,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262.63 : 41,750.94 = 18,772.21 : x
  2. Step 2: Convert to fraction form
    30,262.63/41,750.94 = 18,772.21/x
  3. Step 3: Cross multiply
    30,262.63x = 41,750.94 × 18,772.21
  4. Step 4: Simplify right side
    30,262.63x = 783,757,413.38
  5. Step 5: Solve for x
    x = 783,757,413.38/30,262.63
  6. Step 6: Final answer
    x = 25,898.52

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1.5x scale

Why These Related Problems?

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