Home / 20,718.15-31,076.79-5,926.96

Finding the Fourth Proportional to 20,718.15, 31,076.79 and 5,926.96

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Solution

The fourth proportional to 20,718.15, 31,076.79 and 5,926.96 is: 8,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.15 : 31,076.79 = 5,926.96 : x
  2. Step 2: Convert to fraction form
    20,718.15/31,076.79 = 5,926.96/x
  3. Step 3: Cross multiply
    20,718.15x = 31,076.79 × 5,926.96
  4. Step 4: Simplify right side
    20,718.15x = 184,190,891.26
  5. Step 5: Solve for x
    x = 184,190,891.26/20,718.15
  6. Step 6: Final answer
    x = 8,890.32

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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.