Home / 20,367.36-30,542.76-8,513.37

Finding the Fourth Proportional to 20,367.36, 30,542.76 and 8,513.37

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Solution

The fourth proportional to 20,367.36, 30,542.76 and 8,513.37 is: 12,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.36 : 30,542.76 = 8,513.37 : x
  2. Step 2: Convert to fraction form
    20,367.36/30,542.76 = 8,513.37/x
  3. Step 3: Cross multiply
    20,367.36x = 30,542.76 × 8,513.37
  4. Step 4: Simplify right side
    20,367.36x = 260,021,816.70
  5. Step 5: Solve for x
    x = 260,021,816.70/20,367.36
  6. Step 6: Final answer
    x = 12,766.59

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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.