Home / 20,149.14-30,222.78-7,002.54

Finding the Fourth Proportional to 20,149.14, 30,222.78 and 7,002.54

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Solution

The fourth proportional to 20,149.14, 30,222.78 and 7,002.54 is: 10,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.14 : 30,222.78 = 7,002.54 : x
  2. Step 2: Convert to fraction form
    20,149.14/30,222.78 = 7,002.54/x
  3. Step 3: Cross multiply
    20,149.14x = 30,222.78 × 7,002.54
  4. Step 4: Simplify right side
    20,149.14x = 211,636,225.86
  5. Step 5: Solve for x
    x = 211,636,225.86/20,149.14
  6. Step 6: Final answer
    x = 10,503.49

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Half scale
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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.