Home / 30,761.10-46,105.80-14,122.88

Finding the Fourth Proportional to 30,761.10, 46,105.80 and 14,122.88

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Solution

The fourth proportional to 30,761.10, 46,105.80 and 14,122.88 is: 21,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,761.10 : 46,105.80 = 14,122.88 : x
  2. Step 2: Convert to fraction form
    30,761.10/46,105.80 = 14,122.88/x
  3. Step 3: Cross multiply
    30,761.10x = 46,105.80 × 14,122.88
  4. Step 4: Simplify right side
    30,761.10x = 651,146,680.70
  5. Step 5: Solve for x
    x = 651,146,680.70/30,761.10
  6. Step 6: Final answer
    x = 21,167.86

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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.