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Finding the Fourth Proportional to 34,670.38, 47,845.07 and 18,754.78

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Solution

The fourth proportional to 34,670.38, 47,845.07 and 18,754.78 is: 25,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,670.38 : 47,845.07 = 18,754.78 : x
  2. Step 2: Convert to fraction form
    34,670.38/47,845.07 = 18,754.78/x
  3. Step 3: Cross multiply
    34,670.38x = 47,845.07 × 18,754.78
  4. Step 4: Simplify right side
    34,670.38x = 897,323,761.93
  5. Step 5: Solve for x
    x = 897,323,761.93/34,670.38
  6. Step 6: Final answer
    x = 25,881.57

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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.