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Finding the Fourth Proportional to 20,027.72, 30,048.72 and 8,933.42

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Solution

The fourth proportional to 20,027.72, 30,048.72 and 8,933.42 is: 13,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.72 : 30,048.72 = 8,933.42 : x
  2. Step 2: Convert to fraction form
    20,027.72/30,048.72 = 8,933.42/x
  3. Step 3: Cross multiply
    20,027.72x = 30,048.72 × 8,933.42
  4. Step 4: Simplify right side
    20,027.72x = 268,437,836.22
  5. Step 5: Solve for x
    x = 268,437,836.22/20,027.72
  6. Step 6: Final answer
    x = 13,403.31

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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.