Home / 31,511.46-43,493.21-19,583.78

Finding the Fourth Proportional to 31,511.46, 43,493.21 and 19,583.78

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Solution

The fourth proportional to 31,511.46, 43,493.21 and 19,583.78 is: 27,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.46 : 43,493.21 = 19,583.78 : x
  2. Step 2: Convert to fraction form
    31,511.46/43,493.21 = 19,583.78/x
  3. Step 3: Cross multiply
    31,511.46x = 43,493.21 × 19,583.78
  4. Step 4: Simplify right side
    31,511.46x = 851,761,456.13
  5. Step 5: Solve for x
    x = 851,761,456.13/31,511.46
  6. Step 6: Final answer
    x = 27,030.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.