Home / 33,172.74-45,770.13-21,068.64

Finding the Fourth Proportional to 33,172.74, 45,770.13 and 21,068.64

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Solution

The fourth proportional to 33,172.74, 45,770.13 and 21,068.64 is: 29,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.74 : 45,770.13 = 21,068.64 : x
  2. Step 2: Convert to fraction form
    33,172.74/45,770.13 = 21,068.64/x
  3. Step 3: Cross multiply
    33,172.74x = 45,770.13 × 21,068.64
  4. Step 4: Simplify right side
    33,172.74x = 964,314,391.72
  5. Step 5: Solve for x
    x = 964,314,391.72/33,172.74
  6. Step 6: Final answer
    x = 29,069.48

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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.