Home / 31,215.07-46,818-11,489.04

Finding the Fourth Proportional to 31,215.07, 46,818 and 11,489.04

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Solution

The fourth proportional to 31,215.07, 46,818 and 11,489.04 is: 17,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.07 : 46,818 = 11,489.04 : x
  2. Step 2: Convert to fraction form
    31,215.07/46,818 = 11,489.04/x
  3. Step 3: Cross multiply
    31,215.07x = 46,818 × 11,489.04
  4. Step 4: Simplify right side
    31,215.07x = 537,893,874.72
  5. Step 5: Solve for x
    x = 537,893,874.72/31,215.07
  6. Step 6: Final answer
    x = 17,231.86

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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.