Home / 20,185.46-30,279.72-6,146.68

Finding the Fourth Proportional to 20,185.46, 30,279.72 and 6,146.68

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Solution

The fourth proportional to 20,185.46, 30,279.72 and 6,146.68 is: 9,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.46 : 30,279.72 = 6,146.68 : x
  2. Step 2: Convert to fraction form
    20,185.46/30,279.72 = 6,146.68/x
  3. Step 3: Cross multiply
    20,185.46x = 30,279.72 × 6,146.68
  4. Step 4: Simplify right side
    20,185.46x = 186,119,749.33
  5. Step 5: Solve for x
    x = 186,119,749.33/20,185.46
  6. Step 6: Final answer
    x = 9,220.49

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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.