Home / 20,995.54-31,483.44-7,844.38

Finding the Fourth Proportional to 20,995.54, 31,483.44 and 7,844.38

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Solution

The fourth proportional to 20,995.54, 31,483.44 and 7,844.38 is: 11,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.54 : 31,483.44 = 7,844.38 : x
  2. Step 2: Convert to fraction form
    20,995.54/31,483.44 = 7,844.38/x
  3. Step 3: Cross multiply
    20,995.54x = 31,483.44 × 7,844.38
  4. Step 4: Simplify right side
    20,995.54x = 246,968,067.07
  5. Step 5: Solve for x
    x = 246,968,067.07/20,995.54
  6. Step 6: Final answer
    x = 11,762.88

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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.