Home / 20,450.32-28,222.24-12,496.16

Finding the Fourth Proportional to 20,450.32, 28,222.24 and 12,496.16

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Solution

The fourth proportional to 20,450.32, 28,222.24 and 12,496.16 is: 17,245.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.32 : 28,222.24 = 12,496.16 : x
  2. Step 2: Convert to fraction form
    20,450.32/28,222.24 = 12,496.16/x
  3. Step 3: Cross multiply
    20,450.32x = 28,222.24 × 12,496.16
  4. Step 4: Simplify right side
    20,450.32x = 352,669,626.60
  5. Step 5: Solve for x
    x = 352,669,626.60/20,450.32
  6. Step 6: Final answer
    x = 17,245.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.