Home / 38,206.08-57,308.79-20,786.58

Finding the Fourth Proportional to 38,206.08, 57,308.79 and 20,786.58

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Solution

The fourth proportional to 38,206.08, 57,308.79 and 20,786.58 is: 31,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,206.08 : 57,308.79 = 20,786.58 : x
  2. Step 2: Convert to fraction form
    38,206.08/57,308.79 = 20,786.58/x
  3. Step 3: Cross multiply
    38,206.08x = 57,308.79 × 20,786.58
  4. Step 4: Simplify right side
    38,206.08x = 1,191,253,748.04
  5. Step 5: Solve for x
    x = 1,191,253,748.04/38,206.08
  6. Step 6: Final answer
    x = 31,179.69

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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.