Home / 20,850.48-31,262.76-11,622.96

Finding the Fourth Proportional to 20,850.48, 31,262.76 and 11,622.96

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Solution

The fourth proportional to 20,850.48, 31,262.76 and 11,622.96 is: 17,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.48 : 31,262.76 = 11,622.96 : x
  2. Step 2: Convert to fraction form
    20,850.48/31,262.76 = 11,622.96/x
  3. Step 3: Cross multiply
    20,850.48x = 31,262.76 × 11,622.96
  4. Step 4: Simplify right side
    20,850.48x = 363,365,808.97
  5. Step 5: Solve for x
    x = 363,365,808.97/20,850.48
  6. Step 6: Final answer
    x = 17,427.22

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1.5x scale

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.