Home / 20,149.42-30,229.59-7,002.52

Finding the Fourth Proportional to 20,149.42, 30,229.59 and 7,002.52

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Solution

The fourth proportional to 20,149.42, 30,229.59 and 7,002.52 is: 10,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.42 : 30,229.59 = 7,002.52 : x
  2. Step 2: Convert to fraction form
    20,149.42/30,229.59 = 7,002.52/x
  3. Step 3: Cross multiply
    20,149.42x = 30,229.59 × 7,002.52
  4. Step 4: Simplify right side
    20,149.42x = 211,683,157.42
  5. Step 5: Solve for x
    x = 211,683,157.42/20,149.42
  6. Step 6: Final answer
    x = 10,505.67

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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.