Home / 30,904.97-46,242.62-18,431.78

Finding the Fourth Proportional to 30,904.97, 46,242.62 and 18,431.78

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Solution

The fourth proportional to 30,904.97, 46,242.62 and 18,431.78 is: 27,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,904.97 : 46,242.62 = 18,431.78 : x
  2. Step 2: Convert to fraction form
    30,904.97/46,242.62 = 18,431.78/x
  3. Step 3: Cross multiply
    30,904.97x = 46,242.62 × 18,431.78
  4. Step 4: Simplify right side
    30,904.97x = 852,333,613.33
  5. Step 5: Solve for x
    x = 852,333,613.33/30,904.97
  6. Step 6: Final answer
    x = 27,579.18

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1.5x scale

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.