Home / 20,704.06-30,995.87-18,566.90

Finding the Fourth Proportional to 20,704.06, 30,995.87 and 18,566.90

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Solution

The fourth proportional to 20,704.06, 30,995.87 and 18,566.90 is: 27,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.06 : 30,995.87 = 18,566.90 : x
  2. Step 2: Convert to fraction form
    20,704.06/30,995.87 = 18,566.90/x
  3. Step 3: Cross multiply
    20,704.06x = 30,995.87 × 18,566.90
  4. Step 4: Simplify right side
    20,704.06x = 575,497,218.70
  5. Step 5: Solve for x
    x = 575,497,218.70/20,704.06
  6. Step 6: Final answer
    x = 27,796.35

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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.