Home / 30,314.65-41,836.31-18,378.49

Finding the Fourth Proportional to 30,314.65, 41,836.31 and 18,378.49

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Solution

The fourth proportional to 30,314.65, 41,836.31 and 18,378.49 is: 25,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,314.65 : 41,836.31 = 18,378.49 : x
  2. Step 2: Convert to fraction form
    30,314.65/41,836.31 = 18,378.49/x
  3. Step 3: Cross multiply
    30,314.65x = 41,836.31 × 18,378.49
  4. Step 4: Simplify right side
    30,314.65x = 768,888,204.97
  5. Step 5: Solve for x
    x = 768,888,204.97/30,314.65
  6. Step 6: Final answer
    x = 25,363.59

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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.