Home / 31,546.84-43,539.65-18,971.59

Finding the Fourth Proportional to 31,546.84, 43,539.65 and 18,971.59

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Solution

The fourth proportional to 31,546.84, 43,539.65 and 18,971.59 is: 26,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.84 : 43,539.65 = 18,971.59 : x
  2. Step 2: Convert to fraction form
    31,546.84/43,539.65 = 18,971.59/x
  3. Step 3: Cross multiply
    31,546.84x = 43,539.65 × 18,971.59
  4. Step 4: Simplify right side
    31,546.84x = 826,016,388.54
  5. Step 5: Solve for x
    x = 826,016,388.54/31,546.84
  6. Step 6: Final answer
    x = 26,183.81

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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.