Home / 27,720.90-41,588.10-7,999.02

Finding the Fourth Proportional to 27,720.90, 41,588.10 and 7,999.02

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Solution

The fourth proportional to 27,720.90, 41,588.10 and 7,999.02 is: 12,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.90 : 41,588.10 = 7,999.02 : x
  2. Step 2: Convert to fraction form
    27,720.90/41,588.10 = 7,999.02/x
  3. Step 3: Cross multiply
    27,720.90x = 41,588.10 × 7,999.02
  4. Step 4: Simplify right side
    27,720.90x = 332,664,043.66
  5. Step 5: Solve for x
    x = 332,664,043.66/27,720.90
  6. Step 6: Final answer
    x = 12,000.48

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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.