Home / 20,600.37-30,913.25-8,118.23

Finding the Fourth Proportional to 20,600.37, 30,913.25 and 8,118.23

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Solution

The fourth proportional to 20,600.37, 30,913.25 and 8,118.23 is: 12,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.37 : 30,913.25 = 8,118.23 : x
  2. Step 2: Convert to fraction form
    20,600.37/30,913.25 = 8,118.23/x
  3. Step 3: Cross multiply
    20,600.37x = 30,913.25 × 8,118.23
  4. Step 4: Simplify right side
    20,600.37x = 250,960,678.39
  5. Step 5: Solve for x
    x = 250,960,678.39/20,600.37
  6. Step 6: Final answer
    x = 12,182.34

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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.