Home / 30,718.88-46,080.39-10,447.38

Finding the Fourth Proportional to 30,718.88, 46,080.39 and 10,447.38

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Solution

The fourth proportional to 30,718.88, 46,080.39 and 10,447.38 is: 15,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.88 : 46,080.39 = 10,447.38 : x
  2. Step 2: Convert to fraction form
    30,718.88/46,080.39 = 10,447.38/x
  3. Step 3: Cross multiply
    30,718.88x = 46,080.39 × 10,447.38
  4. Step 4: Simplify right side
    30,718.88x = 481,419,384.06
  5. Step 5: Solve for x
    x = 481,419,384.06/30,718.88
  6. Step 6: Final answer
    x = 15,671.78

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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.