Home / 13,900.31-20,851.83-4,036.94

Finding the Fourth Proportional to 13,900.31, 20,851.83 and 4,036.94

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Solution

The fourth proportional to 13,900.31, 20,851.83 and 4,036.94 is: 6,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.31 : 20,851.83 = 4,036.94 : x
  2. Step 2: Convert to fraction form
    13,900.31/20,851.83 = 4,036.94/x
  3. Step 3: Cross multiply
    13,900.31x = 20,851.83 × 4,036.94
  4. Step 4: Simplify right side
    13,900.31x = 84,177,560.54
  5. Step 5: Solve for x
    x = 84,177,560.54/13,900.31
  6. Step 6: Final answer
    x = 6,055.81

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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.