Home / 18,620.93-27,930.69-4,581.01

Finding the Fourth Proportional to 18,620.93, 27,930.69 and 4,581.01

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Solution

The fourth proportional to 18,620.93, 27,930.69 and 4,581.01 is: 6,871.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.93 : 27,930.69 = 4,581.01 : x
  2. Step 2: Convert to fraction form
    18,620.93/27,930.69 = 4,581.01/x
  3. Step 3: Cross multiply
    18,620.93x = 27,930.69 × 4,581.01
  4. Step 4: Simplify right side
    18,620.93x = 127,950,630.54
  5. Step 5: Solve for x
    x = 127,950,630.54/18,620.93
  6. Step 6: Final answer
    x = 6,871.33

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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.