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Finding the Fourth Proportional to 30,366.63, 41,906.01 and 16,938.75

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Solution

The fourth proportional to 30,366.63, 41,906.01 and 16,938.75 is: 23,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.63 : 41,906.01 = 16,938.75 : x
  2. Step 2: Convert to fraction form
    30,366.63/41,906.01 = 16,938.75/x
  3. Step 3: Cross multiply
    30,366.63x = 41,906.01 × 16,938.75
  4. Step 4: Simplify right side
    30,366.63x = 709,835,426.89
  5. Step 5: Solve for x
    x = 709,835,426.89/30,366.63
  6. Step 6: Final answer
    x = 23,375.51

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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.