Home / 21,383.07-29,508.75-11,951.43

Finding the Fourth Proportional to 21,383.07, 29,508.75 and 11,951.43

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Solution

The fourth proportional to 21,383.07, 29,508.75 and 11,951.43 is: 16,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.07 : 29,508.75 = 11,951.43 : x
  2. Step 2: Convert to fraction form
    21,383.07/29,508.75 = 11,951.43/x
  3. Step 3: Cross multiply
    21,383.07x = 29,508.75 × 11,951.43
  4. Step 4: Simplify right side
    21,383.07x = 352,671,760.01
  5. Step 5: Solve for x
    x = 352,671,760.01/21,383.07
  6. Step 6: Final answer
    x = 16,493.04

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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.