Home / 31,863.31-47,754.09-13,156.48

Finding the Fourth Proportional to 31,863.31, 47,754.09 and 13,156.48

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Solution

The fourth proportional to 31,863.31, 47,754.09 and 13,156.48 is: 19,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.31 : 47,754.09 = 13,156.48 : x
  2. Step 2: Convert to fraction form
    31,863.31/47,754.09 = 13,156.48/x
  3. Step 3: Cross multiply
    31,863.31x = 47,754.09 × 13,156.48
  4. Step 4: Simplify right side
    31,863.31x = 628,275,664.22
  5. Step 5: Solve for x
    x = 628,275,664.22/31,863.31
  6. Step 6: Final answer
    x = 19,717.84

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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.