Home / 20,559.80-30,842.22-8,870.60

Finding the Fourth Proportional to 20,559.80, 30,842.22 and 8,870.60

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Solution

The fourth proportional to 20,559.80, 30,842.22 and 8,870.60 is: 13,306.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.80 : 30,842.22 = 8,870.60 : x
  2. Step 2: Convert to fraction form
    20,559.80/30,842.22 = 8,870.60/x
  3. Step 3: Cross multiply
    20,559.80x = 30,842.22 × 8,870.60
  4. Step 4: Simplify right side
    20,559.80x = 273,588,996.73
  5. Step 5: Solve for x
    x = 273,588,996.73/20,559.80
  6. Step 6: Final answer
    x = 13,306.99

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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.