Home / 38,136.60-57,210.30-11,838.60

Finding the Fourth Proportional to 38,136.60, 57,210.30 and 11,838.60

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Solution

The fourth proportional to 38,136.60, 57,210.30 and 11,838.60 is: 17,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.60 : 57,210.30 = 11,838.60 : x
  2. Step 2: Convert to fraction form
    38,136.60/57,210.30 = 11,838.60/x
  3. Step 3: Cross multiply
    38,136.60x = 57,210.30 × 11,838.60
  4. Step 4: Simplify right side
    38,136.60x = 677,289,857.58
  5. Step 5: Solve for x
    x = 677,289,857.58/38,136.60
  6. Step 6: Final answer
    x = 17,759.58

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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.