Home / 36,436.88-50,280.36-21,530

Finding the Fourth Proportional to 36,436.88, 50,280.36 and 21,530

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Solution

The fourth proportional to 36,436.88, 50,280.36 and 21,530 is: 29,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,436.88 : 50,280.36 = 21,530 : x
  2. Step 2: Convert to fraction form
    36,436.88/50,280.36 = 21,530/x
  3. Step 3: Cross multiply
    36,436.88x = 50,280.36 × 21,530
  4. Step 4: Simplify right side
    36,436.88x = 1,082,536,150.80
  5. Step 5: Solve for x
    x = 1,082,536,150.80/36,436.88
  6. Step 6: Final answer
    x = 29,709.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.