Home / 18,997.16-28,506.54-10,231.88

Finding the Fourth Proportional to 18,997.16, 28,506.54 and 10,231.88

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Solution

The fourth proportional to 18,997.16, 28,506.54 and 10,231.88 is: 15,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.16 : 28,506.54 = 10,231.88 : x
  2. Step 2: Convert to fraction form
    18,997.16/28,506.54 = 10,231.88/x
  3. Step 3: Cross multiply
    18,997.16x = 28,506.54 × 10,231.88
  4. Step 4: Simplify right side
    18,997.16x = 291,675,496.50
  5. Step 5: Solve for x
    x = 291,675,496.50/18,997.16
  6. Step 6: Final answer
    x = 15,353.64

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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.