Home / 20,878.22-31,317.66-6,087.93

Finding the Fourth Proportional to 20,878.22, 31,317.66 and 6,087.93

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Solution

The fourth proportional to 20,878.22, 31,317.66 and 6,087.93 is: 9,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878.22 : 31,317.66 = 6,087.93 : x
  2. Step 2: Convert to fraction form
    20,878.22/31,317.66 = 6,087.93/x
  3. Step 3: Cross multiply
    20,878.22x = 31,317.66 × 6,087.93
  4. Step 4: Simplify right side
    20,878.22x = 190,659,721.84
  5. Step 5: Solve for x
    x = 190,659,721.84/20,878.22
  6. Step 6: Final answer
    x = 9,131.99

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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.