Home / 30,940.20-46,427.10-13,167.96

Finding the Fourth Proportional to 30,940.20, 46,427.10 and 13,167.96

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Solution

The fourth proportional to 30,940.20, 46,427.10 and 13,167.96 is: 19,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.20 : 46,427.10 = 13,167.96 : x
  2. Step 2: Convert to fraction form
    30,940.20/46,427.10 = 13,167.96/x
  3. Step 3: Cross multiply
    30,940.20x = 46,427.10 × 13,167.96
  4. Step 4: Simplify right side
    30,940.20x = 611,350,195.72
  5. Step 5: Solve for x
    x = 611,350,195.72/30,940.20
  6. Step 6: Final answer
    x = 19,759.09

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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.