Home / 20,860.56-31,268.94-9,757.89

Finding the Fourth Proportional to 20,860.56, 31,268.94 and 9,757.89

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Solution

The fourth proportional to 20,860.56, 31,268.94 and 9,757.89 is: 14,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.56 : 31,268.94 = 9,757.89 : x
  2. Step 2: Convert to fraction form
    20,860.56/31,268.94 = 9,757.89/x
  3. Step 3: Cross multiply
    20,860.56x = 31,268.94 × 9,757.89
  4. Step 4: Simplify right side
    20,860.56x = 305,118,876.94
  5. Step 5: Solve for x
    x = 305,118,876.94/20,860.56
  6. Step 6: Final answer
    x = 14,626.59

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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.