Home / 31,625.90-47,340.43-19,914.51

Finding the Fourth Proportional to 31,625.90, 47,340.43 and 19,914.51

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Solution

The fourth proportional to 31,625.90, 47,340.43 and 19,914.51 is: 29,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,625.90 : 47,340.43 = 19,914.51 : x
  2. Step 2: Convert to fraction form
    31,625.90/47,340.43 = 19,914.51/x
  3. Step 3: Cross multiply
    31,625.90x = 47,340.43 × 19,914.51
  4. Step 4: Simplify right side
    31,625.90x = 942,761,416.85
  5. Step 5: Solve for x
    x = 942,761,416.85/31,625.90
  6. Step 6: Final answer
    x = 29,809.79

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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.