Home / 27,420.88-41,131.45-8,445.29

Finding the Fourth Proportional to 27,420.88, 41,131.45 and 8,445.29

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Solution

The fourth proportional to 27,420.88, 41,131.45 and 8,445.29 is: 12,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.88 : 41,131.45 = 8,445.29 : x
  2. Step 2: Convert to fraction form
    27,420.88/41,131.45 = 8,445.29/x
  3. Step 3: Cross multiply
    27,420.88x = 41,131.45 × 8,445.29
  4. Step 4: Simplify right side
    27,420.88x = 347,366,896.45
  5. Step 5: Solve for x
    x = 347,366,896.45/27,420.88
  6. Step 6: Final answer
    x = 12,667.97

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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.