Home / 38,434.06-57,643.80-12,136.60

Finding the Fourth Proportional to 38,434.06, 57,643.80 and 12,136.60

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Solution

The fourth proportional to 38,434.06, 57,643.80 and 12,136.60 is: 18,202.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.06 : 57,643.80 = 12,136.60 : x
  2. Step 2: Convert to fraction form
    38,434.06/57,643.80 = 12,136.60/x
  3. Step 3: Cross multiply
    38,434.06x = 57,643.80 × 12,136.60
  4. Step 4: Simplify right side
    38,434.06x = 699,599,743.08
  5. Step 5: Solve for x
    x = 699,599,743.08/38,434.06
  6. Step 6: Final answer
    x = 18,202.60

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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.