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Finding the Fourth Proportional to 47,318, 70,989 and 17,735.92

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Solution

The fourth proportional to 47,318, 70,989 and 17,735.92 is: 26,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,318 : 70,989 = 17,735.92 : x
  2. Step 2: Convert to fraction form
    47,318/70,989 = 17,735.92/x
  3. Step 3: Cross multiply
    47,318x = 70,989 × 17,735.92
  4. Step 4: Simplify right side
    47,318x = 1,259,055,224.88
  5. Step 5: Solve for x
    x = 1,259,055,224.88/47,318
  6. Step 6: Final answer
    x = 26,608.38

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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.