Home / 13,441.49-20,162.21-3,580.79

Finding the Fourth Proportional to 13,441.49, 20,162.21 and 3,580.79

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Solution

The fourth proportional to 13,441.49, 20,162.21 and 3,580.79 is: 5,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.49 : 20,162.21 = 3,580.79 : x
  2. Step 2: Convert to fraction form
    13,441.49/20,162.21 = 3,580.79/x
  3. Step 3: Cross multiply
    13,441.49x = 20,162.21 × 3,580.79
  4. Step 4: Simplify right side
    13,441.49x = 72,196,672.45
  5. Step 5: Solve for x
    x = 72,196,672.45/13,441.49
  6. Step 6: Final answer
    x = 5,371.18

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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.