Home / 18,128.98-27,189.04-14,170.44

Finding the Fourth Proportional to 18,128.98, 27,189.04 and 14,170.44

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Solution

The fourth proportional to 18,128.98, 27,189.04 and 14,170.44 is: 21,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.98 : 27,189.04 = 14,170.44 : x
  2. Step 2: Convert to fraction form
    18,128.98/27,189.04 = 14,170.44/x
  3. Step 3: Cross multiply
    18,128.98x = 27,189.04 × 14,170.44
  4. Step 4: Simplify right side
    18,128.98x = 385,280,659.98
  5. Step 5: Solve for x
    x = 385,280,659.98/18,128.98
  6. Step 6: Final answer
    x = 21,252.20

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1.5x scale

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.