Home / 27,991.97-38,626.37-16,659.63

Finding the Fourth Proportional to 27,991.97, 38,626.37 and 16,659.63

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Solution

The fourth proportional to 27,991.97, 38,626.37 and 16,659.63 is: 22,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.97 : 38,626.37 = 16,659.63 : x
  2. Step 2: Convert to fraction form
    27,991.97/38,626.37 = 16,659.63/x
  3. Step 3: Cross multiply
    27,991.97x = 38,626.37 × 16,659.63
  4. Step 4: Simplify right side
    27,991.97x = 643,501,156.47
  5. Step 5: Solve for x
    x = 643,501,156.47/27,991.97
  6. Step 6: Final answer
    x = 22,988.78

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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.