Home / 21,949.34-30,306.37-13,463.17

Finding the Fourth Proportional to 21,949.34, 30,306.37 and 13,463.17

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Solution

The fourth proportional to 21,949.34, 30,306.37 and 13,463.17 is: 18,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.34 : 30,306.37 = 13,463.17 : x
  2. Step 2: Convert to fraction form
    21,949.34/30,306.37 = 13,463.17/x
  3. Step 3: Cross multiply
    21,949.34x = 30,306.37 × 13,463.17
  4. Step 4: Simplify right side
    21,949.34x = 408,019,811.39
  5. Step 5: Solve for x
    x = 408,019,811.39/21,949.34
  6. Step 6: Final answer
    x = 18,589.16

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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.