Home / 18,162.84-27,218.38-13,381.39

Finding the Fourth Proportional to 18,162.84, 27,218.38 and 13,381.39

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Solution

The fourth proportional to 18,162.84, 27,218.38 and 13,381.39 is: 20,053.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.84 : 27,218.38 = 13,381.39 : x
  2. Step 2: Convert to fraction form
    18,162.84/27,218.38 = 13,381.39/x
  3. Step 3: Cross multiply
    18,162.84x = 27,218.38 × 13,381.39
  4. Step 4: Simplify right side
    18,162.84x = 364,219,825.99
  5. Step 5: Solve for x
    x = 364,219,825.99/18,162.84
  6. Step 6: Final answer
    x = 20,053.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.