Home / 20,251.70-30,384.83-7,106.12

Finding the Fourth Proportional to 20,251.70, 30,384.83 and 7,106.12

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Solution

The fourth proportional to 20,251.70, 30,384.83 and 7,106.12 is: 10,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.70 : 30,384.83 = 7,106.12 : x
  2. Step 2: Convert to fraction form
    20,251.70/30,384.83 = 7,106.12/x
  3. Step 3: Cross multiply
    20,251.70x = 30,384.83 × 7,106.12
  4. Step 4: Simplify right side
    20,251.70x = 215,918,114.00
  5. Step 5: Solve for x
    x = 215,918,114.00/20,251.70
  6. Step 6: Final answer
    x = 10,661.73

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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.