Home / 13,430.94-20,144.55-3,571.02

Finding the Fourth Proportional to 13,430.94, 20,144.55 and 3,571.02

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Solution

The fourth proportional to 13,430.94, 20,144.55 and 3,571.02 is: 5,356.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.94 : 20,144.55 = 3,571.02 : x
  2. Step 2: Convert to fraction form
    13,430.94/20,144.55 = 3,571.02/x
  3. Step 3: Cross multiply
    13,430.94x = 20,144.55 × 3,571.02
  4. Step 4: Simplify right side
    13,430.94x = 71,936,590.94
  5. Step 5: Solve for x
    x = 71,936,590.94/13,430.94
  6. Step 6: Final answer
    x = 5,356.04

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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.