Home / 39,219.26-58,819.28-18,421.82

Finding the Fourth Proportional to 39,219.26, 58,819.28 and 18,421.82

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Solution

The fourth proportional to 39,219.26, 58,819.28 and 18,421.82 is: 27,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.26 : 58,819.28 = 18,421.82 : x
  2. Step 2: Convert to fraction form
    39,219.26/58,819.28 = 18,421.82/x
  3. Step 3: Cross multiply
    39,219.26x = 58,819.28 × 18,421.82
  4. Step 4: Simplify right side
    39,219.26x = 1,083,557,940.65
  5. Step 5: Solve for x
    x = 1,083,557,940.65/39,219.26
  6. Step 6: Final answer
    x = 27,628.21

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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.