Home / 33,306.88-45,965.32-18,971.21

Finding the Fourth Proportional to 33,306.88, 45,965.32 and 18,971.21

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Solution

The fourth proportional to 33,306.88, 45,965.32 and 18,971.21 is: 26,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,306.88 : 45,965.32 = 18,971.21 : x
  2. Step 2: Convert to fraction form
    33,306.88/45,965.32 = 18,971.21/x
  3. Step 3: Cross multiply
    33,306.88x = 45,965.32 × 18,971.21
  4. Step 4: Simplify right side
    33,306.88x = 872,017,738.44
  5. Step 5: Solve for x
    x = 872,017,738.44/33,306.88
  6. Step 6: Final answer
    x = 26,181.31

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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.