Home / 38,664.72-57,982.85-13,357.79

Finding the Fourth Proportional to 38,664.72, 57,982.85 and 13,357.79

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Solution

The fourth proportional to 38,664.72, 57,982.85 and 13,357.79 is: 20,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.72 : 57,982.85 = 13,357.79 : x
  2. Step 2: Convert to fraction form
    38,664.72/57,982.85 = 13,357.79/x
  3. Step 3: Cross multiply
    38,664.72x = 57,982.85 × 13,357.79
  4. Step 4: Simplify right side
    38,664.72x = 774,522,377.20
  5. Step 5: Solve for x
    x = 774,522,377.20/38,664.72
  6. Step 6: Final answer
    x = 20,031.76

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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.