Home / 20,445.39-30,668.07-5,452.53

Finding the Fourth Proportional to 20,445.39, 30,668.07 and 5,452.53

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Solution

The fourth proportional to 20,445.39, 30,668.07 and 5,452.53 is: 8,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.39 : 30,668.07 = 5,452.53 : x
  2. Step 2: Convert to fraction form
    20,445.39/30,668.07 = 5,452.53/x
  3. Step 3: Cross multiply
    20,445.39x = 30,668.07 × 5,452.53
  4. Step 4: Simplify right side
    20,445.39x = 167,218,571.72
  5. Step 5: Solve for x
    x = 167,218,571.72/20,445.39
  6. Step 6: Final answer
    x = 8,178.79

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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.