Home / 25,676.42-38,488.21-12,512.51

Finding the Fourth Proportional to 25,676.42, 38,488.21 and 12,512.51

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Solution

The fourth proportional to 25,676.42, 38,488.21 and 12,512.51 is: 18,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,676.42 : 38,488.21 = 12,512.51 : x
  2. Step 2: Convert to fraction form
    25,676.42/38,488.21 = 12,512.51/x
  3. Step 3: Cross multiply
    25,676.42x = 38,488.21 × 12,512.51
  4. Step 4: Simplify right side
    25,676.42x = 481,583,996.14
  5. Step 5: Solve for x
    x = 481,583,996.14/25,676.42
  6. Step 6: Final answer
    x = 18,755.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.