Home / 31,827.30-47,751.31-15,185.18

Finding the Fourth Proportional to 31,827.30, 47,751.31 and 15,185.18

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Solution

The fourth proportional to 31,827.30, 47,751.31 and 15,185.18 is: 22,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.30 : 47,751.31 = 15,185.18 : x
  2. Step 2: Convert to fraction form
    31,827.30/47,751.31 = 15,185.18/x
  3. Step 3: Cross multiply
    31,827.30x = 47,751.31 × 15,185.18
  4. Step 4: Simplify right side
    31,827.30x = 725,112,284.35
  5. Step 5: Solve for x
    x = 725,112,284.35/31,827.30
  6. Step 6: Final answer
    x = 22,782.71

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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.