Home / 33,054.78-45,620.58-21,126.06

Finding the Fourth Proportional to 33,054.78, 45,620.58 and 21,126.06

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Solution

The fourth proportional to 33,054.78, 45,620.58 and 21,126.06 is: 29,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,054.78 : 45,620.58 = 21,126.06 : x
  2. Step 2: Convert to fraction form
    33,054.78/45,620.58 = 21,126.06/x
  3. Step 3: Cross multiply
    33,054.78x = 45,620.58 × 21,126.06
  4. Step 4: Simplify right side
    33,054.78x = 963,783,110.31
  5. Step 5: Solve for x
    x = 963,783,110.31/33,054.78
  6. Step 6: Final answer
    x = 29,157.15

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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.