Home / 38,428.88-57,645.09-11,772.96

Finding the Fourth Proportional to 38,428.88, 57,645.09 and 11,772.96

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Solution

The fourth proportional to 38,428.88, 57,645.09 and 11,772.96 is: 17,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.88 : 57,645.09 = 11,772.96 : x
  2. Step 2: Convert to fraction form
    38,428.88/57,645.09 = 11,772.96/x
  3. Step 3: Cross multiply
    38,428.88x = 57,645.09 × 11,772.96
  4. Step 4: Simplify right side
    38,428.88x = 678,653,338.77
  5. Step 5: Solve for x
    x = 678,653,338.77/38,428.88
  6. Step 6: Final answer
    x = 17,659.98

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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.