Home / 19,606.35-29,393.11-13,665.81

Finding the Fourth Proportional to 19,606.35, 29,393.11 and 13,665.81

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Solution

The fourth proportional to 19,606.35, 29,393.11 and 13,665.81 is: 20,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,606.35 : 29,393.11 = 13,665.81 : x
  2. Step 2: Convert to fraction form
    19,606.35/29,393.11 = 13,665.81/x
  3. Step 3: Cross multiply
    19,606.35x = 29,393.11 × 13,665.81
  4. Step 4: Simplify right side
    19,606.35x = 401,680,783.88
  5. Step 5: Solve for x
    x = 401,680,783.88/19,606.35
  6. Step 6: Final answer
    x = 20,487.28

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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.