Home / 18,622.78-27,934.47-4,582.85

Finding the Fourth Proportional to 18,622.78, 27,934.47 and 4,582.85

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Solution

The fourth proportional to 18,622.78, 27,934.47 and 4,582.85 is: 6,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.78 : 27,934.47 = 4,582.85 : x
  2. Step 2: Convert to fraction form
    18,622.78/27,934.47 = 4,582.85/x
  3. Step 3: Cross multiply
    18,622.78x = 27,934.47 × 4,582.85
  4. Step 4: Simplify right side
    18,622.78x = 128,019,323.25
  5. Step 5: Solve for x
    x = 128,019,323.25/18,622.78
  6. Step 6: Final answer
    x = 6,874.34

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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.