Home / 29,119.54-43,679.32-19,321.42

Finding the Fourth Proportional to 29,119.54, 43,679.32 and 19,321.42

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Solution

The fourth proportional to 29,119.54, 43,679.32 and 19,321.42 is: 28,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,119.54 : 43,679.32 = 19,321.42 : x
  2. Step 2: Convert to fraction form
    29,119.54/43,679.32 = 19,321.42/x
  3. Step 3: Cross multiply
    29,119.54x = 43,679.32 × 19,321.42
  4. Step 4: Simplify right side
    29,119.54x = 843,946,487.03
  5. Step 5: Solve for x
    x = 843,946,487.03/29,119.54
  6. Step 6: Final answer
    x = 28,982.14

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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.