Home / 42,908.94-64,367.74-11,321.19

Finding the Fourth Proportional to 42,908.94, 64,367.74 and 11,321.19

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Solution

The fourth proportional to 42,908.94, 64,367.74 and 11,321.19 is: 16,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,908.94 : 64,367.74 = 11,321.19 : x
  2. Step 2: Convert to fraction form
    42,908.94/64,367.74 = 11,321.19/x
  3. Step 3: Cross multiply
    42,908.94x = 64,367.74 × 11,321.19
  4. Step 4: Simplify right side
    42,908.94x = 728,719,428.56
  5. Step 5: Solve for x
    x = 728,719,428.56/42,908.94
  6. Step 6: Final answer
    x = 16,982.93

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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.