Home / 22,371.28-30,871.49-12,299.53

Finding the Fourth Proportional to 22,371.28, 30,871.49 and 12,299.53

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Solution

The fourth proportional to 22,371.28, 30,871.49 and 12,299.53 is: 16,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.28 : 30,871.49 = 12,299.53 : x
  2. Step 2: Convert to fraction form
    22,371.28/30,871.49 = 12,299.53/x
  3. Step 3: Cross multiply
    22,371.28x = 30,871.49 × 12,299.53
  4. Step 4: Simplify right side
    22,371.28x = 379,704,817.40
  5. Step 5: Solve for x
    x = 379,704,817.40/22,371.28
  6. Step 6: Final answer
    x = 16,972.87

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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.