Home / 33,357.21-46,033.07-21,420.64

Finding the Fourth Proportional to 33,357.21, 46,033.07 and 21,420.64

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Solution

The fourth proportional to 33,357.21, 46,033.07 and 21,420.64 is: 29,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,357.21 : 46,033.07 = 21,420.64 : x
  2. Step 2: Convert to fraction form
    33,357.21/46,033.07 = 21,420.64/x
  3. Step 3: Cross multiply
    33,357.21x = 46,033.07 × 21,420.64
  4. Step 4: Simplify right side
    33,357.21x = 986,057,820.56
  5. Step 5: Solve for x
    x = 986,057,820.56/33,357.21
  6. Step 6: Final answer
    x = 29,560.56

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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.