Home / 28,136.68-42,205.00-11,277.30

Finding the Fourth Proportional to 28,136.68, 42,205.00 and 11,277.30

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Solution

The fourth proportional to 28,136.68, 42,205.00 and 11,277.30 is: 16,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.68 : 42,205.00 = 11,277.30 : x
  2. Step 2: Convert to fraction form
    28,136.68/42,205.00 = 11,277.30/x
  3. Step 3: Cross multiply
    28,136.68x = 42,205.00 × 11,277.30
  4. Step 4: Simplify right side
    28,136.68x = 475,958,479.02
  5. Step 5: Solve for x
    x = 475,958,479.02/28,136.68
  6. Step 6: Final answer
    x = 16,915.94

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1.5x scale

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.