Home / 19,674.21-29,487.42-9,129.90

Finding the Fourth Proportional to 19,674.21, 29,487.42 and 9,129.90

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Solution

The fourth proportional to 19,674.21, 29,487.42 and 9,129.90 is: 13,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,674.21 : 29,487.42 = 9,129.90 : x
  2. Step 2: Convert to fraction form
    19,674.21/29,487.42 = 9,129.90/x
  3. Step 3: Cross multiply
    19,674.21x = 29,487.42 × 9,129.90
  4. Step 4: Simplify right side
    19,674.21x = 269,217,195.86
  5. Step 5: Solve for x
    x = 269,217,195.86/19,674.21
  6. Step 6: Final answer
    x = 13,683.76

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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.