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Finding the Fourth Proportional to 38,606.94, 57,908.97 and 13,982.94

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Solution

The fourth proportional to 38,606.94, 57,908.97 and 13,982.94 is: 20,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,606.94 : 57,908.97 = 13,982.94 : x
  2. Step 2: Convert to fraction form
    38,606.94/57,908.97 = 13,982.94/x
  3. Step 3: Cross multiply
    38,606.94x = 57,908.97 × 13,982.94
  4. Step 4: Simplify right side
    38,606.94x = 809,737,652.97
  5. Step 5: Solve for x
    x = 809,737,652.97/38,606.94
  6. Step 6: Final answer
    x = 20,973.89

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1.5x scale

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.