Home / 27,991.31-38,633.09-16,667.44

Finding the Fourth Proportional to 27,991.31, 38,633.09 and 16,667.44

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Solution

The fourth proportional to 27,991.31, 38,633.09 and 16,667.44 is: 23,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.31 : 38,633.09 = 16,667.44 : x
  2. Step 2: Convert to fraction form
    27,991.31/38,633.09 = 16,667.44/x
  3. Step 3: Cross multiply
    27,991.31x = 38,633.09 × 16,667.44
  4. Step 4: Simplify right side
    27,991.31x = 643,914,529.67
  5. Step 5: Solve for x
    x = 643,914,529.67/27,991.31
  6. Step 6: Final answer
    x = 23,004.09

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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.