Home / 30,367.89-41,908.32-16,939.71

Finding the Fourth Proportional to 30,367.89, 41,908.32 and 16,939.71

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Solution

The fourth proportional to 30,367.89, 41,908.32 and 16,939.71 is: 23,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,367.89 : 41,908.32 = 16,939.71 : x
  2. Step 2: Convert to fraction form
    30,367.89/41,908.32 = 16,939.71/x
  3. Step 3: Cross multiply
    30,367.89x = 41,908.32 × 16,939.71
  4. Step 4: Simplify right side
    30,367.89x = 709,914,787.39
  5. Step 5: Solve for x
    x = 709,914,787.39/30,367.89
  6. Step 6: Final answer
    x = 23,377.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.