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Finding the Fourth Proportional to 30,109.52, 45,163.98 and 7,922.41

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Solution

The fourth proportional to 30,109.52, 45,163.98 and 7,922.41 is: 11,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.52 : 45,163.98 = 7,922.41 : x
  2. Step 2: Convert to fraction form
    30,109.52/45,163.98 = 7,922.41/x
  3. Step 3: Cross multiply
    30,109.52x = 45,163.98 × 7,922.41
  4. Step 4: Simplify right side
    30,109.52x = 357,807,453.88
  5. Step 5: Solve for x
    x = 357,807,453.88/30,109.52
  6. Step 6: Final answer
    x = 11,883.53

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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.