Home / 33,002.60-45,532.80-21,069.80

Finding the Fourth Proportional to 33,002.60, 45,532.80 and 21,069.80

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Solution

The fourth proportional to 33,002.60, 45,532.80 and 21,069.80 is: 29,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,002.60 : 45,532.80 = 21,069.80 : x
  2. Step 2: Convert to fraction form
    33,002.60/45,532.80 = 21,069.80/x
  3. Step 3: Cross multiply
    33,002.60x = 45,532.80 × 21,069.80
  4. Step 4: Simplify right side
    33,002.60x = 959,366,989.44
  5. Step 5: Solve for x
    x = 959,366,989.44/33,002.60
  6. Step 6: Final answer
    x = 29,069.44

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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.