Home / 42,986.44-64,458.92-18,019.79

Finding the Fourth Proportional to 42,986.44, 64,458.92 and 18,019.79

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Solution

The fourth proportional to 42,986.44, 64,458.92 and 18,019.79 is: 27,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986.44 : 64,458.92 = 18,019.79 : x
  2. Step 2: Convert to fraction form
    42,986.44/64,458.92 = 18,019.79/x
  3. Step 3: Cross multiply
    42,986.44x = 64,458.92 × 18,019.79
  4. Step 4: Simplify right side
    42,986.44x = 1,161,535,924.78
  5. Step 5: Solve for x
    x = 1,161,535,924.78/42,986.44
  6. Step 6: Final answer
    x = 27,020.99

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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.