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Finding the Fourth Proportional to 30,352.39, 41,893.02 and 19,723.57

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Solution

The fourth proportional to 30,352.39, 41,893.02 and 19,723.57 is: 27,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.39 : 41,893.02 = 19,723.57 : x
  2. Step 2: Convert to fraction form
    30,352.39/41,893.02 = 19,723.57/x
  3. Step 3: Cross multiply
    30,352.39x = 41,893.02 × 19,723.57
  4. Step 4: Simplify right side
    30,352.39x = 826,279,912.48
  5. Step 5: Solve for x
    x = 826,279,912.48/30,352.39
  6. Step 6: Final answer
    x = 27,222.89

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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.