Home / 38,634.77-57,989.62-18,658.38

Finding the Fourth Proportional to 38,634.77, 57,989.62 and 18,658.38

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Solution

The fourth proportional to 38,634.77, 57,989.62 and 18,658.38 is: 28,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.77 : 57,989.62 = 18,658.38 : x
  2. Step 2: Convert to fraction form
    38,634.77/57,989.62 = 18,658.38/x
  3. Step 3: Cross multiply
    38,634.77x = 57,989.62 × 18,658.38
  4. Step 4: Simplify right side
    38,634.77x = 1,081,992,606.80
  5. Step 5: Solve for x
    x = 1,081,992,606.80/38,634.77
  6. Step 6: Final answer
    x = 28,005.67

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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.