Home / 38,179.25-57,255.14-13,212.51

Finding the Fourth Proportional to 38,179.25, 57,255.14 and 13,212.51

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Solution

The fourth proportional to 38,179.25, 57,255.14 and 13,212.51 is: 19,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.25 : 57,255.14 = 13,212.51 : x
  2. Step 2: Convert to fraction form
    38,179.25/57,255.14 = 13,212.51/x
  3. Step 3: Cross multiply
    38,179.25x = 57,255.14 × 13,212.51
  4. Step 4: Simplify right side
    38,179.25x = 756,484,109.80
  5. Step 5: Solve for x
    x = 756,484,109.80/38,179.25
  6. Step 6: Final answer
    x = 19,814.01

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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.