Home / 19,912.24-29,867.37-7,431.31

Finding the Fourth Proportional to 19,912.24, 29,867.37 and 7,431.31

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Solution

The fourth proportional to 19,912.24, 29,867.37 and 7,431.31 is: 11,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.24 : 29,867.37 = 7,431.31 : x
  2. Step 2: Convert to fraction form
    19,912.24/29,867.37 = 7,431.31/x
  3. Step 3: Cross multiply
    19,912.24x = 29,867.37 × 7,431.31
  4. Step 4: Simplify right side
    19,912.24x = 221,953,685.35
  5. Step 5: Solve for x
    x = 221,953,685.35/19,912.24
  6. Step 6: Final answer
    x = 11,146.60

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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.