Home / 38,857.05-58,209.31-20,149.32

Finding the Fourth Proportional to 38,857.05, 58,209.31 and 20,149.32

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Solution

The fourth proportional to 38,857.05, 58,209.31 and 20,149.32 is: 30,184.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,857.05 : 58,209.31 = 20,149.32 : x
  2. Step 2: Convert to fraction form
    38,857.05/58,209.31 = 20,149.32/x
  3. Step 3: Cross multiply
    38,857.05x = 58,209.31 × 20,149.32
  4. Step 4: Simplify right side
    38,857.05x = 1,172,877,695.14
  5. Step 5: Solve for x
    x = 1,172,877,695.14/38,857.05
  6. Step 6: Final answer
    x = 30,184.42

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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.