Home / 21,104.55-31,654.70-6,313.44

Finding the Fourth Proportional to 21,104.55, 31,654.70 and 6,313.44

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Solution

The fourth proportional to 21,104.55, 31,654.70 and 6,313.44 is: 9,469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.55 : 31,654.70 = 6,313.44 : x
  2. Step 2: Convert to fraction form
    21,104.55/31,654.70 = 6,313.44/x
  3. Step 3: Cross multiply
    21,104.55x = 31,654.70 × 6,313.44
  4. Step 4: Simplify right side
    21,104.55x = 199,850,159.98
  5. Step 5: Solve for x
    x = 199,850,159.98/21,104.55
  6. Step 6: Final answer
    x = 9,469.53

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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.