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Finding the Fourth Proportional to 20,533.94, 30,812.66 and 8,055.08

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Solution

The fourth proportional to 20,533.94, 30,812.66 and 8,055.08 is: 12,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.94 : 30,812.66 = 8,055.08 : x
  2. Step 2: Convert to fraction form
    20,533.94/30,812.66 = 8,055.08/x
  3. Step 3: Cross multiply
    20,533.94x = 30,812.66 × 8,055.08
  4. Step 4: Simplify right side
    20,533.94x = 248,198,401.04
  5. Step 5: Solve for x
    x = 248,198,401.04/20,533.94
  6. Step 6: Final answer
    x = 12,087.23

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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.