Home / 20,192.40-30,292.07-7,713.54

Finding the Fourth Proportional to 20,192.40, 30,292.07 and 7,713.54

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Solution

The fourth proportional to 20,192.40, 30,292.07 and 7,713.54 is: 11,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.40 : 30,292.07 = 7,713.54 : x
  2. Step 2: Convert to fraction form
    20,192.40/30,292.07 = 7,713.54/x
  3. Step 3: Cross multiply
    20,192.40x = 30,292.07 × 7,713.54
  4. Step 4: Simplify right side
    20,192.40x = 233,659,055.06
  5. Step 5: Solve for x
    x = 233,659,055.06/20,192.40
  6. Step 6: Final answer
    x = 11,571.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.