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Finding the Fourth Proportional to 35,449.49, 48,890.49 and 21,299.60

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Solution

The fourth proportional to 35,449.49, 48,890.49 and 21,299.60 is: 29,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,449.49 : 48,890.49 = 21,299.60 : x
  2. Step 2: Convert to fraction form
    35,449.49/48,890.49 = 21,299.60/x
  3. Step 3: Cross multiply
    35,449.49x = 48,890.49 × 21,299.60
  4. Step 4: Simplify right side
    35,449.49x = 1,041,347,636.35
  5. Step 5: Solve for x
    x = 1,041,347,636.35/35,449.49
  6. Step 6: Final answer
    x = 29,375.54

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1.5x scale

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.