Home / 31,206.80-43,067.09-18,467.53

Finding the Fourth Proportional to 31,206.80, 43,067.09 and 18,467.53

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Solution

The fourth proportional to 31,206.80, 43,067.09 and 18,467.53 is: 25,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,206.80 : 43,067.09 = 18,467.53 : x
  2. Step 2: Convert to fraction form
    31,206.80/43,067.09 = 18,467.53/x
  3. Step 3: Cross multiply
    31,206.80x = 43,067.09 × 18,467.53
  4. Step 4: Simplify right side
    31,206.80x = 795,342,715.09
  5. Step 5: Solve for x
    x = 795,342,715.09/31,206.80
  6. Step 6: Final answer
    x = 25,486.20

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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.