Home / 19,723.05-27,218.49-11,226.45

Finding the Fourth Proportional to 19,723.05, 27,218.49 and 11,226.45

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Solution

The fourth proportional to 19,723.05, 27,218.49 and 11,226.45 is: 15,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.05 : 27,218.49 = 11,226.45 : x
  2. Step 2: Convert to fraction form
    19,723.05/27,218.49 = 11,226.45/x
  3. Step 3: Cross multiply
    19,723.05x = 27,218.49 × 11,226.45
  4. Step 4: Simplify right side
    19,723.05x = 305,567,017.06
  5. Step 5: Solve for x
    x = 305,567,017.06/19,723.05
  6. Step 6: Final answer
    x = 15,492.89

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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.