Home / 38,338.58-57,519.63-19,631.76

Finding the Fourth Proportional to 38,338.58, 57,519.63 and 19,631.76

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Solution

The fourth proportional to 38,338.58, 57,519.63 and 19,631.76 is: 29,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.58 : 57,519.63 = 19,631.76 : x
  2. Step 2: Convert to fraction form
    38,338.58/57,519.63 = 19,631.76/x
  3. Step 3: Cross multiply
    38,338.58x = 57,519.63 × 19,631.76
  4. Step 4: Simplify right side
    38,338.58x = 1,129,211,571.45
  5. Step 5: Solve for x
    x = 1,129,211,571.45/38,338.58
  6. Step 6: Final answer
    x = 29,453.66

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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.