Home / 18,620.43-27,929.94-4,580.51

Finding the Fourth Proportional to 18,620.43, 27,929.94 and 4,580.51

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Solution

The fourth proportional to 18,620.43, 27,929.94 and 4,580.51 is: 6,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.43 : 27,929.94 = 4,580.51 : x
  2. Step 2: Convert to fraction form
    18,620.43/27,929.94 = 4,580.51/x
  3. Step 3: Cross multiply
    18,620.43x = 27,929.94 × 4,580.51
  4. Step 4: Simplify right side
    18,620.43x = 127,933,229.82
  5. Step 5: Solve for x
    x = 127,933,229.82/18,620.43
  6. Step 6: Final answer
    x = 6,870.58

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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.