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Finding the Fourth Proportional to 27,987.03, 41,985.09 and 8,267.58

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Solution

The fourth proportional to 27,987.03, 41,985.09 and 8,267.58 is: 12,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.03 : 41,985.09 = 8,267.58 : x
  2. Step 2: Convert to fraction form
    27,987.03/41,985.09 = 8,267.58/x
  3. Step 3: Cross multiply
    27,987.03x = 41,985.09 × 8,267.58
  4. Step 4: Simplify right side
    27,987.03x = 347,115,090.38
  5. Step 5: Solve for x
    x = 347,115,090.38/27,987.03
  6. Step 6: Final answer
    x = 12,402.71

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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.