Home / 20,840.41-31,262.67-6,799.87

Finding the Fourth Proportional to 20,840.41, 31,262.67 and 6,799.87

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Solution

The fourth proportional to 20,840.41, 31,262.67 and 6,799.87 is: 10,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.41 : 31,262.67 = 6,799.87 : x
  2. Step 2: Convert to fraction form
    20,840.41/31,262.67 = 6,799.87/x
  3. Step 3: Cross multiply
    20,840.41x = 31,262.67 × 6,799.87
  4. Step 4: Simplify right side
    20,840.41x = 212,582,013.70
  5. Step 5: Solve for x
    x = 212,582,013.70/20,840.41
  6. Step 6: Final answer
    x = 10,200.47

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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.