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Finding the Fourth Proportional to 20,374.34, 30,563.33 and 5,583.33

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Solution

The fourth proportional to 20,374.34, 30,563.33 and 5,583.33 is: 8,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.34 : 30,563.33 = 5,583.33 : x
  2. Step 2: Convert to fraction form
    20,374.34/30,563.33 = 5,583.33/x
  3. Step 3: Cross multiply
    20,374.34x = 30,563.33 × 5,583.33
  4. Step 4: Simplify right side
    20,374.34x = 170,645,129.37
  5. Step 5: Solve for x
    x = 170,645,129.37/20,374.34
  6. Step 6: Final answer
    x = 8,375.49

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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.