Home / 15,623.92-21,571.06-13,942.43

Finding the Fourth Proportional to 15,623.92, 21,571.06 and 13,942.43

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Solution

The fourth proportional to 15,623.92, 21,571.06 and 13,942.43 is: 19,249.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.92 : 21,571.06 = 13,942.43 : x
  2. Step 2: Convert to fraction form
    15,623.92/21,571.06 = 13,942.43/x
  3. Step 3: Cross multiply
    15,623.92x = 21,571.06 × 13,942.43
  4. Step 4: Simplify right side
    15,623.92x = 300,752,994.08
  5. Step 5: Solve for x
    x = 300,752,994.08/15,623.92
  6. Step 6: Final answer
    x = 19,249.53

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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.