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Finding the Fourth Proportional to 33,489.94, 46,219.80 and 21,401.50

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Solution

The fourth proportional to 33,489.94, 46,219.80 and 21,401.50 is: 29,536.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,489.94 : 46,219.80 = 21,401.50 : x
  2. Step 2: Convert to fraction form
    33,489.94/46,219.80 = 21,401.50/x
  3. Step 3: Cross multiply
    33,489.94x = 46,219.80 × 21,401.50
  4. Step 4: Simplify right side
    33,489.94x = 989,173,049.70
  5. Step 5: Solve for x
    x = 989,173,049.70/33,489.94
  6. Step 6: Final answer
    x = 29,536.42

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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.