Home / 20,186.47-30,279.81-6,146.62

Finding the Fourth Proportional to 20,186.47, 30,279.81 and 6,146.62

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Solution

The fourth proportional to 20,186.47, 30,279.81 and 6,146.62 is: 9,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.47 : 30,279.81 = 6,146.62 : x
  2. Step 2: Convert to fraction form
    20,186.47/30,279.81 = 6,146.62/x
  3. Step 3: Cross multiply
    20,186.47x = 30,279.81 × 6,146.62
  4. Step 4: Simplify right side
    20,186.47x = 186,118,485.74
  5. Step 5: Solve for x
    x = 186,118,485.74/20,186.47
  6. Step 6: Final answer
    x = 9,219.96

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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.