Home / 31,211.96-43,067.44-17,783.40

Finding the Fourth Proportional to 31,211.96, 43,067.44 and 17,783.40

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Solution

The fourth proportional to 31,211.96, 43,067.44 and 17,783.40 is: 24,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.96 : 43,067.44 = 17,783.40 : x
  2. Step 2: Convert to fraction form
    31,211.96/43,067.44 = 17,783.40/x
  3. Step 3: Cross multiply
    31,211.96x = 43,067.44 × 17,783.40
  4. Step 4: Simplify right side
    31,211.96x = 765,885,512.50
  5. Step 5: Solve for x
    x = 765,885,512.50/31,211.96
  6. Step 6: Final answer
    x = 24,538.21

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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.