Home / 18,589.32-27,903.42-13,664.52

Finding the Fourth Proportional to 18,589.32, 27,903.42 and 13,664.52

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Solution

The fourth proportional to 18,589.32, 27,903.42 and 13,664.52 is: 20,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.32 : 27,903.42 = 13,664.52 : x
  2. Step 2: Convert to fraction form
    18,589.32/27,903.42 = 13,664.52/x
  3. Step 3: Cross multiply
    18,589.32x = 27,903.42 × 13,664.52
  4. Step 4: Simplify right side
    18,589.32x = 381,286,840.66
  5. Step 5: Solve for x
    x = 381,286,840.66/18,589.32
  6. Step 6: Final answer
    x = 20,511.07

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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.