Home / 38,431.36-57,645.60-12,137.68

Finding the Fourth Proportional to 38,431.36, 57,645.60 and 12,137.68

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Solution

The fourth proportional to 38,431.36, 57,645.60 and 12,137.68 is: 18,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.36 : 57,645.60 = 12,137.68 : x
  2. Step 2: Convert to fraction form
    38,431.36/57,645.60 = 12,137.68/x
  3. Step 3: Cross multiply
    38,431.36x = 57,645.60 × 12,137.68
  4. Step 4: Simplify right side
    38,431.36x = 699,683,846.21
  5. Step 5: Solve for x
    x = 699,683,846.21/38,431.36
  6. Step 6: Final answer
    x = 18,206.07

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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.