Home / 20,601.34-30,901.69-7,450.49

Finding the Fourth Proportional to 20,601.34, 30,901.69 and 7,450.49

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Solution

The fourth proportional to 20,601.34, 30,901.69 and 7,450.49 is: 11,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.34 : 30,901.69 = 7,450.49 : x
  2. Step 2: Convert to fraction form
    20,601.34/30,901.69 = 7,450.49/x
  3. Step 3: Cross multiply
    20,601.34x = 30,901.69 × 7,450.49
  4. Step 4: Simplify right side
    20,601.34x = 230,232,732.33
  5. Step 5: Solve for x
    x = 230,232,732.33/20,601.34
  6. Step 6: Final answer
    x = 11,175.62

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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.