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Finding the Fourth Proportional to 20,601, 30,907.64 and 14,608.62

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Solution

The fourth proportional to 20,601, 30,907.64 and 14,608.62 is: 21,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601 : 30,907.64 = 14,608.62 : x
  2. Step 2: Convert to fraction form
    20,601/30,907.64 = 14,608.62/x
  3. Step 3: Cross multiply
    20,601x = 30,907.64 × 14,608.62
  4. Step 4: Simplify right side
    20,601x = 451,518,004.38
  5. Step 5: Solve for x
    x = 451,518,004.38/20,601
  6. Step 6: Final answer
    x = 21,917.29

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1.5x scale

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.