Home / 38,286.08-57,429.13-11,992.88

Finding the Fourth Proportional to 38,286.08, 57,429.13 and 11,992.88

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Solution

The fourth proportional to 38,286.08, 57,429.13 and 11,992.88 is: 17,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.08 : 57,429.13 = 11,992.88 : x
  2. Step 2: Convert to fraction form
    38,286.08/57,429.13 = 11,992.88/x
  3. Step 3: Cross multiply
    38,286.08x = 57,429.13 × 11,992.88
  4. Step 4: Simplify right side
    38,286.08x = 688,740,347.47
  5. Step 5: Solve for x
    x = 688,740,347.47/38,286.08
  6. Step 6: Final answer
    x = 17,989.31

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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.