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Finding the Fourth Proportional to 33,903.81, 50,855.72 and 13,127.31

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Solution

The fourth proportional to 33,903.81, 50,855.72 and 13,127.31 is: 19,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,903.81 : 50,855.72 = 13,127.31 : x
  2. Step 2: Convert to fraction form
    33,903.81/50,855.72 = 13,127.31/x
  3. Step 3: Cross multiply
    33,903.81x = 50,855.72 × 13,127.31
  4. Step 4: Simplify right side
    33,903.81x = 667,598,801.71
  5. Step 5: Solve for x
    x = 667,598,801.71/33,903.81
  6. Step 6: Final answer
    x = 19,690.97

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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.