Home / 21,463.45-29,634.23-13,409.37

Finding the Fourth Proportional to 21,463.45, 29,634.23 and 13,409.37

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Solution

The fourth proportional to 21,463.45, 29,634.23 and 13,409.37 is: 18,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.45 : 29,634.23 = 13,409.37 : x
  2. Step 2: Convert to fraction form
    21,463.45/29,634.23 = 13,409.37/x
  3. Step 3: Cross multiply
    21,463.45x = 29,634.23 × 13,409.37
  4. Step 4: Simplify right side
    21,463.45x = 397,376,206.56
  5. Step 5: Solve for x
    x = 397,376,206.56/21,463.45
  6. Step 6: Final answer
    x = 18,514.09

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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.