Home / 31,282.37-43,172.78-17,855.66

Finding the Fourth Proportional to 31,282.37, 43,172.78 and 17,855.66

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Solution

The fourth proportional to 31,282.37, 43,172.78 and 17,855.66 is: 24,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.37 : 43,172.78 = 17,855.66 : x
  2. Step 2: Convert to fraction form
    31,282.37/43,172.78 = 17,855.66/x
  3. Step 3: Cross multiply
    31,282.37x = 43,172.78 × 17,855.66
  4. Step 4: Simplify right side
    31,282.37x = 770,878,480.93
  5. Step 5: Solve for x
    x = 770,878,480.93/31,282.37
  6. Step 6: Final answer
    x = 24,642.59

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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.