Home / 38,438.51-57,676.22-20,908.34

Finding the Fourth Proportional to 38,438.51, 57,676.22 and 20,908.34

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Solution

The fourth proportional to 38,438.51, 57,676.22 and 20,908.34 is: 31,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.51 : 57,676.22 = 20,908.34 : x
  2. Step 2: Convert to fraction form
    38,438.51/57,676.22 = 20,908.34/x
  3. Step 3: Cross multiply
    38,438.51x = 57,676.22 × 20,908.34
  4. Step 4: Simplify right side
    38,438.51x = 1,205,913,757.23
  5. Step 5: Solve for x
    x = 1,205,913,757.23/38,438.51
  6. Step 6: Final answer
    x = 31,372.54

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1.5x scale

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.