Home / 31,208.31-43,069.17-18,469.04

Finding the Fourth Proportional to 31,208.31, 43,069.17 and 18,469.04

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Solution

The fourth proportional to 31,208.31, 43,069.17 and 18,469.04 is: 25,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.31 : 43,069.17 = 18,469.04 : x
  2. Step 2: Convert to fraction form
    31,208.31/43,069.17 = 18,469.04/x
  3. Step 3: Cross multiply
    31,208.31x = 43,069.17 × 18,469.04
  4. Step 4: Simplify right side
    31,208.31x = 795,446,008.15
  5. Step 5: Solve for x
    x = 795,446,008.15/31,208.31
  6. Step 6: Final answer
    x = 25,488.28

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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.