Home / 31,676.70-43,701.41-20,344.62

Finding the Fourth Proportional to 31,676.70, 43,701.41 and 20,344.62

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Solution

The fourth proportional to 31,676.70, 43,701.41 and 20,344.62 is: 28,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,676.70 : 43,701.41 = 20,344.62 : x
  2. Step 2: Convert to fraction form
    31,676.70/43,701.41 = 20,344.62/x
  3. Step 3: Cross multiply
    31,676.70x = 43,701.41 × 20,344.62
  4. Step 4: Simplify right side
    31,676.70x = 889,088,579.91
  5. Step 5: Solve for x
    x = 889,088,579.91/31,676.70
  6. Step 6: Final answer
    x = 28,067.59

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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.