Home / 27,428.28-41,136.24-12,622.98

Finding the Fourth Proportional to 27,428.28, 41,136.24 and 12,622.98

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Solution

The fourth proportional to 27,428.28, 41,136.24 and 12,622.98 is: 18,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.28 : 41,136.24 = 12,622.98 : x
  2. Step 2: Convert to fraction form
    27,428.28/41,136.24 = 12,622.98/x
  3. Step 3: Cross multiply
    27,428.28x = 41,136.24 × 12,622.98
  4. Step 4: Simplify right side
    27,428.28x = 519,261,934.80
  5. Step 5: Solve for x
    x = 519,261,934.80/27,428.28
  6. Step 6: Final answer
    x = 18,931.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.