Home / 38,380.72-57,464.79-19,620.37

Finding the Fourth Proportional to 38,380.72, 57,464.79 and 19,620.37

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Solution

The fourth proportional to 38,380.72, 57,464.79 and 19,620.37 is: 29,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.72 : 57,464.79 = 19,620.37 : x
  2. Step 2: Convert to fraction form
    38,380.72/57,464.79 = 19,620.37/x
  3. Step 3: Cross multiply
    38,380.72x = 57,464.79 × 19,620.37
  4. Step 4: Simplify right side
    38,380.72x = 1,127,480,441.77
  5. Step 5: Solve for x
    x = 1,127,480,441.77/38,380.72
  6. Step 6: Final answer
    x = 29,376.22

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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.