Home / 30,469.85-45,704.78-15,707.60

Finding the Fourth Proportional to 30,469.85, 45,704.78 and 15,707.60

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Solution

The fourth proportional to 30,469.85, 45,704.78 and 15,707.60 is: 23,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.85 : 45,704.78 = 15,707.60 : x
  2. Step 2: Convert to fraction form
    30,469.85/45,704.78 = 15,707.60/x
  3. Step 3: Cross multiply
    30,469.85x = 45,704.78 × 15,707.60
  4. Step 4: Simplify right side
    30,469.85x = 717,912,323.79
  5. Step 5: Solve for x
    x = 717,912,323.79/30,469.85
  6. Step 6: Final answer
    x = 23,561.40

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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.