Home / 38,676.93-57,900.51-21,093.45

Finding the Fourth Proportional to 38,676.93, 57,900.51 and 21,093.45

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Solution

The fourth proportional to 38,676.93, 57,900.51 and 21,093.45 is: 31,577.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676.93 : 57,900.51 = 21,093.45 : x
  2. Step 2: Convert to fraction form
    38,676.93/57,900.51 = 21,093.45/x
  3. Step 3: Cross multiply
    38,676.93x = 57,900.51 × 21,093.45
  4. Step 4: Simplify right side
    38,676.93x = 1,221,321,512.66
  5. Step 5: Solve for x
    x = 1,221,321,512.66/38,676.93
  6. Step 6: Final answer
    x = 31,577.52

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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.