Home / 30,400.55-45,600.79-16,900.33

Finding the Fourth Proportional to 30,400.55, 45,600.79 and 16,900.33

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Solution

The fourth proportional to 30,400.55, 45,600.79 and 16,900.33 is: 25,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.55 : 45,600.79 = 16,900.33 : x
  2. Step 2: Convert to fraction form
    30,400.55/45,600.79 = 16,900.33/x
  3. Step 3: Cross multiply
    30,400.55x = 45,600.79 × 16,900.33
  4. Step 4: Simplify right side
    30,400.55x = 770,668,399.26
  5. Step 5: Solve for x
    x = 770,668,399.26/30,400.55
  6. Step 6: Final answer
    x = 25,350.48

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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.