Home / 30,450.87-41,994.99-19,121.43

Finding the Fourth Proportional to 30,450.87, 41,994.99 and 19,121.43

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Solution

The fourth proportional to 30,450.87, 41,994.99 and 19,121.43 is: 26,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.87 : 41,994.99 = 19,121.43 : x
  2. Step 2: Convert to fraction form
    30,450.87/41,994.99 = 19,121.43/x
  3. Step 3: Cross multiply
    30,450.87x = 41,994.99 × 19,121.43
  4. Step 4: Simplify right side
    30,450.87x = 803,004,261.64
  5. Step 5: Solve for x
    x = 803,004,261.64/30,450.87
  6. Step 6: Final answer
    x = 26,370.49

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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.