Home / 18,621.93-27,932.19-4,581.99

Finding the Fourth Proportional to 18,621.93, 27,932.19 and 4,581.99

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Solution

The fourth proportional to 18,621.93, 27,932.19 and 4,581.99 is: 6,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.93 : 27,932.19 = 4,581.99 : x
  2. Step 2: Convert to fraction form
    18,621.93/27,932.19 = 4,581.99/x
  3. Step 3: Cross multiply
    18,621.93x = 27,932.19 × 4,581.99
  4. Step 4: Simplify right side
    18,621.93x = 127,985,015.26
  5. Step 5: Solve for x
    x = 127,985,015.26/18,621.93
  6. Step 6: Final answer
    x = 6,872.81

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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.