Home / 33,859.98-46,739.31-20,431.80

Finding the Fourth Proportional to 33,859.98, 46,739.31 and 20,431.80

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Solution

The fourth proportional to 33,859.98, 46,739.31 and 20,431.80 is: 28,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,859.98 : 46,739.31 = 20,431.80 : x
  2. Step 2: Convert to fraction form
    33,859.98/46,739.31 = 20,431.80/x
  3. Step 3: Cross multiply
    33,859.98x = 46,739.31 × 20,431.80
  4. Step 4: Simplify right side
    33,859.98x = 954,968,234.06
  5. Step 5: Solve for x
    x = 954,968,234.06/33,859.98
  6. Step 6: Final answer
    x = 28,203.45

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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.