Home / 30,609.75-45,912.47-15,021.75

Finding the Fourth Proportional to 30,609.75, 45,912.47 and 15,021.75

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Solution

The fourth proportional to 30,609.75, 45,912.47 and 15,021.75 is: 22,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.75 : 45,912.47 = 15,021.75 : x
  2. Step 2: Convert to fraction form
    30,609.75/45,912.47 = 15,021.75/x
  3. Step 3: Cross multiply
    30,609.75x = 45,912.47 × 15,021.75
  4. Step 4: Simplify right side
    30,609.75x = 689,685,571.11
  5. Step 5: Solve for x
    x = 689,685,571.11/30,609.75
  6. Step 6: Final answer
    x = 22,531.56

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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.