Home / 22,699.88-31,321.12-13,747.96

Finding the Fourth Proportional to 22,699.88, 31,321.12 and 13,747.96

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Solution

The fourth proportional to 22,699.88, 31,321.12 and 13,747.96 is: 18,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.88 : 31,321.12 = 13,747.96 : x
  2. Step 2: Convert to fraction form
    22,699.88/31,321.12 = 13,747.96/x
  3. Step 3: Cross multiply
    22,699.88x = 31,321.12 × 13,747.96
  4. Step 4: Simplify right side
    22,699.88x = 430,601,504.92
  5. Step 5: Solve for x
    x = 430,601,504.92/22,699.88
  6. Step 6: Final answer
    x = 18,969.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.