Home / 21,091.32-29,104.94-11,659.28

Finding the Fourth Proportional to 21,091.32, 29,104.94 and 11,659.28

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Solution

The fourth proportional to 21,091.32, 29,104.94 and 11,659.28 is: 16,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.32 : 29,104.94 = 11,659.28 : x
  2. Step 2: Convert to fraction form
    21,091.32/29,104.94 = 11,659.28/x
  3. Step 3: Cross multiply
    21,091.32x = 29,104.94 × 11,659.28
  4. Step 4: Simplify right side
    21,091.32x = 339,342,644.84
  5. Step 5: Solve for x
    x = 339,342,644.84/21,091.32
  6. Step 6: Final answer
    x = 16,089.21

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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.