Home / 27,999.10-41,998.65-20,125.90

Finding the Fourth Proportional to 27,999.10, 41,998.65 and 20,125.90

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Solution

The fourth proportional to 27,999.10, 41,998.65 and 20,125.90 is: 30,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.10 : 41,998.65 = 20,125.90 : x
  2. Step 2: Convert to fraction form
    27,999.10/41,998.65 = 20,125.90/x
  3. Step 3: Cross multiply
    27,999.10x = 41,998.65 × 20,125.90
  4. Step 4: Simplify right side
    27,999.10x = 845,260,630.04
  5. Step 5: Solve for x
    x = 845,260,630.04/27,999.10
  6. Step 6: Final answer
    x = 30,188.85

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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.