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Finding the Fourth Proportional to 20,375.36, 30,563.92 and 5,583.92

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Solution

The fourth proportional to 20,375.36, 30,563.92 and 5,583.92 is: 8,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.36 : 30,563.92 = 5,583.92 : x
  2. Step 2: Convert to fraction form
    20,375.36/30,563.92 = 5,583.92/x
  3. Step 3: Cross multiply
    20,375.36x = 30,563.92 × 5,583.92
  4. Step 4: Simplify right side
    20,375.36x = 170,666,484.17
  5. Step 5: Solve for x
    x = 170,666,484.17/20,375.36
  6. Step 6: Final answer
    x = 8,376.12

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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.