Home / 20,450.34-28,222.26-12,496.14

Finding the Fourth Proportional to 20,450.34, 28,222.26 and 12,496.14

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Solution

The fourth proportional to 20,450.34, 28,222.26 and 12,496.14 is: 17,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.34 : 28,222.26 = 12,496.14 : x
  2. Step 2: Convert to fraction form
    20,450.34/28,222.26 = 12,496.14/x
  3. Step 3: Cross multiply
    20,450.34x = 28,222.26 × 12,496.14
  4. Step 4: Simplify right side
    20,450.34x = 352,669,312.08
  5. Step 5: Solve for x
    x = 352,669,312.08/20,450.34
  6. Step 6: Final answer
    x = 17,245.16

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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.