Home / 38,308.60-57,339.78-20,494.81

Finding the Fourth Proportional to 38,308.60, 57,339.78 and 20,494.81

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Solution

The fourth proportional to 38,308.60, 57,339.78 and 20,494.81 is: 30,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,308.60 : 57,339.78 = 20,494.81 : x
  2. Step 2: Convert to fraction form
    38,308.60/57,339.78 = 20,494.81/x
  3. Step 3: Cross multiply
    38,308.60x = 57,339.78 × 20,494.81
  4. Step 4: Simplify right side
    38,308.60x = 1,175,167,896.54
  5. Step 5: Solve for x
    x = 1,175,167,896.54/38,308.60
  6. Step 6: Final answer
    x = 30,676.35

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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.