Home / 30,287.56-41,790.49-18,348.59

Finding the Fourth Proportional to 30,287.56, 41,790.49 and 18,348.59

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Solution

The fourth proportional to 30,287.56, 41,790.49 and 18,348.59 is: 25,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.56 : 41,790.49 = 18,348.59 : x
  2. Step 2: Convert to fraction form
    30,287.56/41,790.49 = 18,348.59/x
  3. Step 3: Cross multiply
    30,287.56x = 41,790.49 × 18,348.59
  4. Step 4: Simplify right side
    30,287.56x = 766,796,578.22
  5. Step 5: Solve for x
    x = 766,796,578.22/30,287.56
  6. Step 6: Final answer
    x = 25,317.21

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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.