Home / 31,129.06-46,680.30-11,882.20

Finding the Fourth Proportional to 31,129.06, 46,680.30 and 11,882.20

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Solution

The fourth proportional to 31,129.06, 46,680.30 and 11,882.20 is: 17,818.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.06 : 46,680.30 = 11,882.20 : x
  2. Step 2: Convert to fraction form
    31,129.06/46,680.30 = 11,882.20/x
  3. Step 3: Cross multiply
    31,129.06x = 46,680.30 × 11,882.20
  4. Step 4: Simplify right side
    31,129.06x = 554,664,660.66
  5. Step 5: Solve for x
    x = 554,664,660.66/31,129.06
  6. Step 6: Final answer
    x = 17,818.23

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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.