Home / 13,824.46-20,736.96-3,436.21

Finding the Fourth Proportional to 13,824.46, 20,736.96 and 3,436.21

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Solution

The fourth proportional to 13,824.46, 20,736.96 and 3,436.21 is: 5,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.46 : 20,736.96 = 3,436.21 : x
  2. Step 2: Convert to fraction form
    13,824.46/20,736.96 = 3,436.21/x
  3. Step 3: Cross multiply
    13,824.46x = 20,736.96 × 3,436.21
  4. Step 4: Simplify right side
    13,824.46x = 71,256,549.32
  5. Step 5: Solve for x
    x = 71,256,549.32/13,824.46
  6. Step 6: Final answer
    x = 5,154.38

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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.