Home / 20,108.70-30,162.06-9,571.05

Finding the Fourth Proportional to 20,108.70, 30,162.06 and 9,571.05

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Solution

The fourth proportional to 20,108.70, 30,162.06 and 9,571.05 is: 14,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.70 : 30,162.06 = 9,571.05 : x
  2. Step 2: Convert to fraction form
    20,108.70/30,162.06 = 9,571.05/x
  3. Step 3: Cross multiply
    20,108.70x = 30,162.06 × 9,571.05
  4. Step 4: Simplify right side
    20,108.70x = 288,682,584.36
  5. Step 5: Solve for x
    x = 288,682,584.36/20,108.70
  6. Step 6: Final answer
    x = 14,356.10

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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.