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Finding the Fourth Proportional to 34,684.64, 47,864.93 and 18,769.09

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Solution

The fourth proportional to 34,684.64, 47,864.93 and 18,769.09 is: 25,901.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,684.64 : 47,864.93 = 18,769.09 : x
  2. Step 2: Convert to fraction form
    34,684.64/47,864.93 = 18,769.09/x
  3. Step 3: Cross multiply
    34,684.64x = 47,864.93 × 18,769.09
  4. Step 4: Simplify right side
    34,684.64x = 898,381,348.24
  5. Step 5: Solve for x
    x = 898,381,348.24/34,684.64
  6. Step 6: Final answer
    x = 25,901.42

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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.