Home / 20,469.48-30,704.74-15,308.12

Finding the Fourth Proportional to 20,469.48, 30,704.74 and 15,308.12

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Solution

The fourth proportional to 20,469.48, 30,704.74 and 15,308.12 is: 22,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.48 : 30,704.74 = 15,308.12 : x
  2. Step 2: Convert to fraction form
    20,469.48/30,704.74 = 15,308.12/x
  3. Step 3: Cross multiply
    20,469.48x = 30,704.74 × 15,308.12
  4. Step 4: Simplify right side
    20,469.48x = 470,031,844.49
  5. Step 5: Solve for x
    x = 470,031,844.49/20,469.48
  6. Step 6: Final answer
    x = 22,962.57

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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.