Home / 20,054.79-30,081.78-6,906.87

Finding the Fourth Proportional to 20,054.79, 30,081.78 and 6,906.87

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Solution

The fourth proportional to 20,054.79, 30,081.78 and 6,906.87 is: 10,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.79 : 30,081.78 = 6,906.87 : x
  2. Step 2: Convert to fraction form
    20,054.79/30,081.78 = 6,906.87/x
  3. Step 3: Cross multiply
    20,054.79x = 30,081.78 × 6,906.87
  4. Step 4: Simplify right side
    20,054.79x = 207,770,943.83
  5. Step 5: Solve for x
    x = 207,770,943.83/20,054.79
  6. Step 6: Final answer
    x = 10,360.17

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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.