Home / 21,352.44-29,472.60-12,403.96

Finding the Fourth Proportional to 21,352.44, 29,472.60 and 12,403.96

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Solution

The fourth proportional to 21,352.44, 29,472.60 and 12,403.96 is: 17,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.44 : 29,472.60 = 12,403.96 : x
  2. Step 2: Convert to fraction form
    21,352.44/29,472.60 = 12,403.96/x
  3. Step 3: Cross multiply
    21,352.44x = 29,472.60 × 12,403.96
  4. Step 4: Simplify right side
    21,352.44x = 365,576,951.50
  5. Step 5: Solve for x
    x = 365,576,951.50/21,352.44
  6. Step 6: Final answer
    x = 17,121.09

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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.