Home / 27,587.20-41,380.80-12,791.20

Finding the Fourth Proportional to 27,587.20, 41,380.80 and 12,791.20

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Solution

The fourth proportional to 27,587.20, 41,380.80 and 12,791.20 is: 19,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,587.20 : 41,380.80 = 12,791.20 : x
  2. Step 2: Convert to fraction form
    27,587.20/41,380.80 = 12,791.20/x
  3. Step 3: Cross multiply
    27,587.20x = 41,380.80 × 12,791.20
  4. Step 4: Simplify right side
    27,587.20x = 529,310,088.96
  5. Step 5: Solve for x
    x = 529,310,088.96/27,587.20
  6. Step 6: Final answer
    x = 19,186.80

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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.