Home / 19,136.28-26,423.82-18,157.80

Finding the Fourth Proportional to 19,136.28, 26,423.82 and 18,157.80

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Solution

The fourth proportional to 19,136.28, 26,423.82 and 18,157.80 is: 25,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.28 : 26,423.82 = 18,157.80 : x
  2. Step 2: Convert to fraction form
    19,136.28/26,423.82 = 18,157.80/x
  3. Step 3: Cross multiply
    19,136.28x = 26,423.82 × 18,157.80
  4. Step 4: Simplify right side
    19,136.28x = 479,798,438.80
  5. Step 5: Solve for x
    x = 479,798,438.80/19,136.28
  6. Step 6: Final answer
    x = 25,072.71

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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.