Home / 31,786.62-43,873.50-18,365.70

Finding the Fourth Proportional to 31,786.62, 43,873.50 and 18,365.70

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Solution

The fourth proportional to 31,786.62, 43,873.50 and 18,365.70 is: 25,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.62 : 43,873.50 = 18,365.70 : x
  2. Step 2: Convert to fraction form
    31,786.62/43,873.50 = 18,365.70/x
  3. Step 3: Cross multiply
    31,786.62x = 43,873.50 × 18,365.70
  4. Step 4: Simplify right side
    31,786.62x = 805,767,538.95
  5. Step 5: Solve for x
    x = 805,767,538.95/31,786.62
  6. Step 6: Final answer
    x = 25,349.27

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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.