Home / 20,087.98-30,102.27-18,964.66

Finding the Fourth Proportional to 20,087.98, 30,102.27 and 18,964.66

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Solution

The fourth proportional to 20,087.98, 30,102.27 and 18,964.66 is: 28,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.98 : 30,102.27 = 18,964.66 : x
  2. Step 2: Convert to fraction form
    20,087.98/30,102.27 = 18,964.66/x
  3. Step 3: Cross multiply
    20,087.98x = 30,102.27 × 18,964.66
  4. Step 4: Simplify right side
    20,087.98x = 570,879,296.21
  5. Step 5: Solve for x
    x = 570,879,296.21/20,087.98
  6. Step 6: Final answer
    x = 28,418.96

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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.