Home / 20,220.14-30,311.44-10,337.60

Finding the Fourth Proportional to 20,220.14, 30,311.44 and 10,337.60

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Solution

The fourth proportional to 20,220.14, 30,311.44 and 10,337.60 is: 15,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.14 : 30,311.44 = 10,337.60 : x
  2. Step 2: Convert to fraction form
    20,220.14/30,311.44 = 10,337.60/x
  3. Step 3: Cross multiply
    20,220.14x = 30,311.44 × 10,337.60
  4. Step 4: Simplify right side
    20,220.14x = 313,347,542.14
  5. Step 5: Solve for x
    x = 313,347,542.14/20,220.14
  6. Step 6: Final answer
    x = 15,496.80

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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.