Home / 33,080.48-45,670.07-21,782.81

Finding the Fourth Proportional to 33,080.48, 45,670.07 and 21,782.81

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Solution

The fourth proportional to 33,080.48, 45,670.07 and 21,782.81 is: 30,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,080.48 : 45,670.07 = 21,782.81 : x
  2. Step 2: Convert to fraction form
    33,080.48/45,670.07 = 21,782.81/x
  3. Step 3: Cross multiply
    33,080.48x = 45,670.07 × 21,782.81
  4. Step 4: Simplify right side
    33,080.48x = 994,822,283.60
  5. Step 5: Solve for x
    x = 994,822,283.60/33,080.48
  6. Step 6: Final answer
    x = 30,072.79

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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.