Home / 30,508.29-45,687.91-18,805.41

Finding the Fourth Proportional to 30,508.29, 45,687.91 and 18,805.41

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Solution

The fourth proportional to 30,508.29, 45,687.91 and 18,805.41 is: 28,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.29 : 45,687.91 = 18,805.41 : x
  2. Step 2: Convert to fraction form
    30,508.29/45,687.91 = 18,805.41/x
  3. Step 3: Cross multiply
    30,508.29x = 45,687.91 × 18,805.41
  4. Step 4: Simplify right side
    30,508.29x = 859,179,879.59
  5. Step 5: Solve for x
    x = 859,179,879.59/30,508.29
  6. Step 6: Final answer
    x = 28,162.18

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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.