Home / 20,184.23-27,853.89-11,231.48

Finding the Fourth Proportional to 20,184.23, 27,853.89 and 11,231.48

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Solution

The fourth proportional to 20,184.23, 27,853.89 and 11,231.48 is: 15,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.23 : 27,853.89 = 11,231.48 : x
  2. Step 2: Convert to fraction form
    20,184.23/27,853.89 = 11,231.48/x
  3. Step 3: Cross multiply
    20,184.23x = 27,853.89 × 11,231.48
  4. Step 4: Simplify right side
    20,184.23x = 312,840,408.46
  5. Step 5: Solve for x
    x = 312,840,408.46/20,184.23
  6. Step 6: Final answer
    x = 15,499.25

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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.