Home / 21,498.24-29,669.44-11,939.97

Finding the Fourth Proportional to 21,498.24, 29,669.44 and 11,939.97

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Solution

The fourth proportional to 21,498.24, 29,669.44 and 11,939.97 is: 16,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.24 : 29,669.44 = 11,939.97 : x
  2. Step 2: Convert to fraction form
    21,498.24/29,669.44 = 11,939.97/x
  3. Step 3: Cross multiply
    21,498.24x = 29,669.44 × 11,939.97
  4. Step 4: Simplify right side
    21,498.24x = 354,252,327.31
  5. Step 5: Solve for x
    x = 354,252,327.31/21,498.24
  6. Step 6: Final answer
    x = 16,478.20

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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.