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Finding the Fourth Proportional to 30,563.60, 45,840.48 and 8,371.79

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Solution

The fourth proportional to 30,563.60, 45,840.48 and 8,371.79 is: 12,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,563.60 : 45,840.48 = 8,371.79 : x
  2. Step 2: Convert to fraction form
    30,563.60/45,840.48 = 8,371.79/x
  3. Step 3: Cross multiply
    30,563.60x = 45,840.48 × 8,371.79
  4. Step 4: Simplify right side
    30,563.60x = 383,766,611.46
  5. Step 5: Solve for x
    x = 383,766,611.46/30,563.60
  6. Step 6: Final answer
    x = 12,556.33

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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.