Home / 31,661.68-43,694.24-17,515.84

Finding the Fourth Proportional to 31,661.68, 43,694.24 and 17,515.84

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Solution

The fourth proportional to 31,661.68, 43,694.24 and 17,515.84 is: 24,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.68 : 43,694.24 = 17,515.84 : x
  2. Step 2: Convert to fraction form
    31,661.68/43,694.24 = 17,515.84/x
  3. Step 3: Cross multiply
    31,661.68x = 43,694.24 × 17,515.84
  4. Step 4: Simplify right side
    31,661.68x = 765,341,316.76
  5. Step 5: Solve for x
    x = 765,341,316.76/31,661.68
  6. Step 6: Final answer
    x = 24,172.48

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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.