Home / 20,127.44-30,178.30-6,980.73

Finding the Fourth Proportional to 20,127.44, 30,178.30 and 6,980.73

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Solution

The fourth proportional to 20,127.44, 30,178.30 and 6,980.73 is: 10,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.44 : 30,178.30 = 6,980.73 : x
  2. Step 2: Convert to fraction form
    20,127.44/30,178.30 = 6,980.73/x
  3. Step 3: Cross multiply
    20,127.44x = 30,178.30 × 6,980.73
  4. Step 4: Simplify right side
    20,127.44x = 210,666,564.16
  5. Step 5: Solve for x
    x = 210,666,564.16/20,127.44
  6. Step 6: Final answer
    x = 10,466.63

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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.