Home / 31,877.14-43,987.74-18,449.23

Finding the Fourth Proportional to 31,877.14, 43,987.74 and 18,449.23

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Solution

The fourth proportional to 31,877.14, 43,987.74 and 18,449.23 is: 25,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.14 : 43,987.74 = 18,449.23 : x
  2. Step 2: Convert to fraction form
    31,877.14/43,987.74 = 18,449.23/x
  3. Step 3: Cross multiply
    31,877.14x = 43,987.74 × 18,449.23
  4. Step 4: Simplify right side
    31,877.14x = 811,539,932.44
  5. Step 5: Solve for x
    x = 811,539,932.44/31,877.14
  6. Step 6: Final answer
    x = 25,458.37

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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.