Home / 21,104.88-29,125.64-11,673.44

Finding the Fourth Proportional to 21,104.88, 29,125.64 and 11,673.44

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Solution

The fourth proportional to 21,104.88, 29,125.64 and 11,673.44 is: 16,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.88 : 29,125.64 = 11,673.44 : x
  2. Step 2: Convert to fraction form
    21,104.88/29,125.64 = 11,673.44/x
  3. Step 3: Cross multiply
    21,104.88x = 29,125.64 × 11,673.44
  4. Step 4: Simplify right side
    21,104.88x = 339,996,411.00
  5. Step 5: Solve for x
    x = 339,996,411.00/21,104.88
  6. Step 6: Final answer
    x = 16,109.85

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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.