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Finding the Fourth Proportional to 38,351.80, 57,473.70 and 30,467.80

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Solution

The fourth proportional to 38,351.80, 57,473.70 and 30,467.80 is: 45,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,351.80 : 57,473.70 = 30,467.80 : x
  2. Step 2: Convert to fraction form
    38,351.80/57,473.70 = 30,467.80/x
  3. Step 3: Cross multiply
    38,351.80x = 57,473.70 × 30,467.80
  4. Step 4: Simplify right side
    38,351.80x = 1,751,097,196.86
  5. Step 5: Solve for x
    x = 1,751,097,196.86/38,351.80
  6. Step 6: Final answer
    x = 45,658.80

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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.