Home / 19,723.80-27,219.53-11,227.20

Finding the Fourth Proportional to 19,723.80, 27,219.53 and 11,227.20

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Solution

The fourth proportional to 19,723.80, 27,219.53 and 11,227.20 is: 15,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.80 : 27,219.53 = 11,227.20 : x
  2. Step 2: Convert to fraction form
    19,723.80/27,219.53 = 11,227.20/x
  3. Step 3: Cross multiply
    19,723.80x = 27,219.53 × 11,227.20
  4. Step 4: Simplify right side
    19,723.80x = 305,599,107.22
  5. Step 5: Solve for x
    x = 305,599,107.22/19,723.80
  6. Step 6: Final answer
    x = 15,493.93

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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.