Home / 18,932.70-26,105.58-15,519

Finding the Fourth Proportional to 18,932.70, 26,105.58 and 15,519

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Solution

The fourth proportional to 18,932.70, 26,105.58 and 15,519 is: 21,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.70 : 26,105.58 = 15,519 : x
  2. Step 2: Convert to fraction form
    18,932.70/26,105.58 = 15,519/x
  3. Step 3: Cross multiply
    18,932.70x = 26,105.58 × 15,519
  4. Step 4: Simplify right side
    18,932.70x = 405,132,496.02
  5. Step 5: Solve for x
    x = 405,132,496.02/18,932.70
  6. Step 6: Final answer
    x = 21,398.56

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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.