Home / 18,110.90-27,170.97-5,631.03

Finding the Fourth Proportional to 18,110.90, 27,170.97 and 5,631.03

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Solution

The fourth proportional to 18,110.90, 27,170.97 and 5,631.03 is: 8,447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.90 : 27,170.97 = 5,631.03 : x
  2. Step 2: Convert to fraction form
    18,110.90/27,170.97 = 5,631.03/x
  3. Step 3: Cross multiply
    18,110.90x = 27,170.97 × 5,631.03
  4. Step 4: Simplify right side
    18,110.90x = 153,000,547.20
  5. Step 5: Solve for x
    x = 153,000,547.20/18,110.90
  6. Step 6: Final answer
    x = 8,447.98

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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.