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Finding the Fourth Proportional to 43,975, 65,962.50 and 19,351

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Solution

The fourth proportional to 43,975, 65,962.50 and 19,351 is: 29,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,975 : 65,962.50 = 19,351 : x
  2. Step 2: Convert to fraction form
    43,975/65,962.50 = 19,351/x
  3. Step 3: Cross multiply
    43,975x = 65,962.50 × 19,351
  4. Step 4: Simplify right side
    43,975x = 1,276,440,337.50
  5. Step 5: Solve for x
    x = 1,276,440,337.50/43,975
  6. Step 6: Final answer
    x = 29,026.50

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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.