Home / 19,731.53-27,228.83-11,769.64

Finding the Fourth Proportional to 19,731.53, 27,228.83 and 11,769.64

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Solution

The fourth proportional to 19,731.53, 27,228.83 and 11,769.64 is: 16,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.53 : 27,228.83 = 11,769.64 : x
  2. Step 2: Convert to fraction form
    19,731.53/27,228.83 = 11,769.64/x
  3. Step 3: Cross multiply
    19,731.53x = 27,228.83 × 11,769.64
  4. Step 4: Simplify right side
    19,731.53x = 320,473,399.80
  5. Step 5: Solve for x
    x = 320,473,399.80/19,731.53
  6. Step 6: Final answer
    x = 16,241.69

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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.