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Finding the Fourth Proportional to 34,684.70, 47,864.79 and 18,769.42

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Solution

The fourth proportional to 34,684.70, 47,864.79 and 18,769.42 is: 25,901.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,684.70 : 47,864.79 = 18,769.42 : x
  2. Step 2: Convert to fraction form
    34,684.70/47,864.79 = 18,769.42/x
  3. Step 3: Cross multiply
    34,684.70x = 47,864.79 × 18,769.42
  4. Step 4: Simplify right side
    34,684.70x = 898,394,346.72
  5. Step 5: Solve for x
    x = 898,394,346.72/34,684.70
  6. Step 6: Final answer
    x = 25,901.75

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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.