Home / 33,181.15-45,799.40-21,858.91

Finding the Fourth Proportional to 33,181.15, 45,799.40 and 21,858.91

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Solution

The fourth proportional to 33,181.15, 45,799.40 and 21,858.91 is: 30,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,181.15 : 45,799.40 = 21,858.91 : x
  2. Step 2: Convert to fraction form
    33,181.15/45,799.40 = 21,858.91/x
  3. Step 3: Cross multiply
    33,181.15x = 45,799.40 × 21,858.91
  4. Step 4: Simplify right side
    33,181.15x = 1,001,124,853.36
  5. Step 5: Solve for x
    x = 1,001,124,853.36/33,181.15
  6. Step 6: Final answer
    x = 30,171.49

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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.