Home / 20,977.67-31,456.26-7,464.33

Finding the Fourth Proportional to 20,977.67, 31,456.26 and 7,464.33

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Solution

The fourth proportional to 20,977.67, 31,456.26 and 7,464.33 is: 11,192.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.67 : 31,456.26 = 7,464.33 : x
  2. Step 2: Convert to fraction form
    20,977.67/31,456.26 = 7,464.33/x
  3. Step 3: Cross multiply
    20,977.67x = 31,456.26 × 7,464.33
  4. Step 4: Simplify right side
    20,977.67x = 234,799,905.21
  5. Step 5: Solve for x
    x = 234,799,905.21/20,977.67
  6. Step 6: Final answer
    x = 11,192.85

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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.