Home / 43,243.54-64,865.31-19,889.62

Finding the Fourth Proportional to 43,243.54, 64,865.31 and 19,889.62

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Solution

The fourth proportional to 43,243.54, 64,865.31 and 19,889.62 is: 29,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,243.54 : 64,865.31 = 19,889.62 : x
  2. Step 2: Convert to fraction form
    43,243.54/64,865.31 = 19,889.62/x
  3. Step 3: Cross multiply
    43,243.54x = 64,865.31 × 19,889.62
  4. Step 4: Simplify right side
    43,243.54x = 1,290,146,367.08
  5. Step 5: Solve for x
    x = 1,290,146,367.08/43,243.54
  6. Step 6: Final answer
    x = 29,834.43

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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.