Home / 21,091.72-29,104.02-11,660.44

Finding the Fourth Proportional to 21,091.72, 29,104.02 and 11,660.44

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Solution

The fourth proportional to 21,091.72, 29,104.02 and 11,660.44 is: 16,090.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.72 : 29,104.02 = 11,660.44 : x
  2. Step 2: Convert to fraction form
    21,091.72/29,104.02 = 11,660.44/x
  3. Step 3: Cross multiply
    21,091.72x = 29,104.02 × 11,660.44
  4. Step 4: Simplify right side
    21,091.72x = 339,365,678.97
  5. Step 5: Solve for x
    x = 339,365,678.97/21,091.72
  6. Step 6: Final answer
    x = 16,090.00

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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.