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Finding the Fourth Proportional to 21,391.50, 32,040.52 and 10,843.40

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Solution

The fourth proportional to 21,391.50, 32,040.52 and 10,843.40 is: 16,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.50 : 32,040.52 = 10,843.40 : x
  2. Step 2: Convert to fraction form
    21,391.50/32,040.52 = 10,843.40/x
  3. Step 3: Cross multiply
    21,391.50x = 32,040.52 × 10,843.40
  4. Step 4: Simplify right side
    21,391.50x = 347,428,174.57
  5. Step 5: Solve for x
    x = 347,428,174.57/21,391.50
  6. Step 6: Final answer
    x = 16,241.41

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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.