Home / 22,370.91-30,871.20-12,299.37

Finding the Fourth Proportional to 22,370.91, 30,871.20 and 12,299.37

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Solution

The fourth proportional to 22,370.91, 30,871.20 and 12,299.37 is: 16,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,370.91 : 30,871.20 = 12,299.37 : x
  2. Step 2: Convert to fraction form
    22,370.91/30,871.20 = 12,299.37/x
  3. Step 3: Cross multiply
    22,370.91x = 30,871.20 × 12,299.37
  4. Step 4: Simplify right side
    22,370.91x = 379,696,311.14
  5. Step 5: Solve for x
    x = 379,696,311.14/22,370.91
  6. Step 6: Final answer
    x = 16,972.77

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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.