Home / 38,509.12-57,765.30-18,805.06

Finding the Fourth Proportional to 38,509.12, 57,765.30 and 18,805.06

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Solution

The fourth proportional to 38,509.12, 57,765.30 and 18,805.06 is: 28,208.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.12 : 57,765.30 = 18,805.06 : x
  2. Step 2: Convert to fraction form
    38,509.12/57,765.30 = 18,805.06/x
  3. Step 3: Cross multiply
    38,509.12x = 57,765.30 × 18,805.06
  4. Step 4: Simplify right side
    38,509.12x = 1,086,279,932.42
  5. Step 5: Solve for x
    x = 1,086,279,932.42/38,509.12
  6. Step 6: Final answer
    x = 28,208.38

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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.