Home / 27,820.80-41,763.60-18,000.90

Finding the Fourth Proportional to 27,820.80, 41,763.60 and 18,000.90

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Solution

The fourth proportional to 27,820.80, 41,763.60 and 18,000.90 is: 27,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.80 : 41,763.60 = 18,000.90 : x
  2. Step 2: Convert to fraction form
    27,820.80/41,763.60 = 18,000.90/x
  3. Step 3: Cross multiply
    27,820.80x = 41,763.60 × 18,000.90
  4. Step 4: Simplify right side
    27,820.80x = 751,782,387.24
  5. Step 5: Solve for x
    x = 751,782,387.24/27,820.80
  6. Step 6: Final answer
    x = 27,022.31

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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.