Home / 18,529.75-27,724.91-12,993.91

Finding the Fourth Proportional to 18,529.75, 27,724.91 and 12,993.91

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Solution

The fourth proportional to 18,529.75, 27,724.91 and 12,993.91 is: 19,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.75 : 27,724.91 = 12,993.91 : x
  2. Step 2: Convert to fraction form
    18,529.75/27,724.91 = 12,993.91/x
  3. Step 3: Cross multiply
    18,529.75x = 27,724.91 × 12,993.91
  4. Step 4: Simplify right side
    18,529.75x = 360,254,985.30
  5. Step 5: Solve for x
    x = 360,254,985.30/18,529.75
  6. Step 6: Final answer
    x = 19,441.98

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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.