Home / 21,270.08-29,351.98-11,838.44

Finding the Fourth Proportional to 21,270.08, 29,351.98 and 11,838.44

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Solution

The fourth proportional to 21,270.08, 29,351.98 and 11,838.44 is: 16,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.08 : 29,351.98 = 11,838.44 : x
  2. Step 2: Convert to fraction form
    21,270.08/29,351.98 = 11,838.44/x
  3. Step 3: Cross multiply
    21,270.08x = 29,351.98 × 11,838.44
  4. Step 4: Simplify right side
    21,270.08x = 347,481,654.11
  5. Step 5: Solve for x
    x = 347,481,654.11/21,270.08
  6. Step 6: Final answer
    x = 16,336.64

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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.