Home / 31,269.96-43,159.25-19,936.85

Finding the Fourth Proportional to 31,269.96, 43,159.25 and 19,936.85

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Solution

The fourth proportional to 31,269.96, 43,159.25 and 19,936.85 is: 27,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.96 : 43,159.25 = 19,936.85 : x
  2. Step 2: Convert to fraction form
    31,269.96/43,159.25 = 19,936.85/x
  3. Step 3: Cross multiply
    31,269.96x = 43,159.25 × 19,936.85
  4. Step 4: Simplify right side
    31,269.96x = 860,459,493.36
  5. Step 5: Solve for x
    x = 860,459,493.36/31,269.96
  6. Step 6: Final answer
    x = 27,517.13

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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.