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Finding the Fourth Proportional to 30,153.80, 41,614.80 and 16,729.38

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Solution

The fourth proportional to 30,153.80, 41,614.80 and 16,729.38 is: 23,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.80 : 41,614.80 = 16,729.38 : x
  2. Step 2: Convert to fraction form
    30,153.80/41,614.80 = 16,729.38/x
  3. Step 3: Cross multiply
    30,153.80x = 41,614.80 × 16,729.38
  4. Step 4: Simplify right side
    30,153.80x = 696,189,511.10
  5. Step 5: Solve for x
    x = 696,189,511.10/30,153.80
  6. Step 6: Final answer
    x = 23,087.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.