Home / 39,162.65-54,045.42-21,257.61

Finding the Fourth Proportional to 39,162.65, 54,045.42 and 21,257.61

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Solution

The fourth proportional to 39,162.65, 54,045.42 and 21,257.61 is: 29,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.65 : 54,045.42 = 21,257.61 : x
  2. Step 2: Convert to fraction form
    39,162.65/54,045.42 = 21,257.61/x
  3. Step 3: Cross multiply
    39,162.65x = 54,045.42 × 21,257.61
  4. Step 4: Simplify right side
    39,162.65x = 1,148,876,460.65
  5. Step 5: Solve for x
    x = 1,148,876,460.65/39,162.65
  6. Step 6: Final answer
    x = 29,336.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.