Home / 21,914.19-30,234.20-12,476.07

Finding the Fourth Proportional to 21,914.19, 30,234.20 and 12,476.07

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Solution

The fourth proportional to 21,914.19, 30,234.20 and 12,476.07 is: 17,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.19 : 30,234.20 = 12,476.07 : x
  2. Step 2: Convert to fraction form
    21,914.19/30,234.20 = 12,476.07/x
  3. Step 3: Cross multiply
    21,914.19x = 30,234.20 × 12,476.07
  4. Step 4: Simplify right side
    21,914.19x = 377,203,933.21
  5. Step 5: Solve for x
    x = 377,203,933.21/21,914.19
  6. Step 6: Final answer
    x = 17,212.77

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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.