Home / 33,180.40-45,798.36-21,858.16

Finding the Fourth Proportional to 33,180.40, 45,798.36 and 21,858.16

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Solution

The fourth proportional to 33,180.40, 45,798.36 and 21,858.16 is: 30,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.40 : 45,798.36 = 21,858.16 : x
  2. Step 2: Convert to fraction form
    33,180.40/45,798.36 = 21,858.16/x
  3. Step 3: Cross multiply
    33,180.40x = 45,798.36 × 21,858.16
  4. Step 4: Simplify right side
    33,180.40x = 1,001,067,880.62
  5. Step 5: Solve for x
    x = 1,001,067,880.62/33,180.40
  6. Step 6: Final answer
    x = 30,170.46

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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.