Home / 31,786.58-43,765.08-27,995.78

Finding the Fourth Proportional to 31,786.58, 43,765.08 and 27,995.78

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Solution

The fourth proportional to 31,786.58, 43,765.08 and 27,995.78 is: 38,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.58 : 43,765.08 = 27,995.78 : x
  2. Step 2: Convert to fraction form
    31,786.58/43,765.08 = 27,995.78/x
  3. Step 3: Cross multiply
    31,786.58x = 43,765.08 × 27,995.78
  4. Step 4: Simplify right side
    31,786.58x = 1,225,237,551.36
  5. Step 5: Solve for x
    x = 1,225,237,551.36/31,786.58
  6. Step 6: Final answer
    x = 38,545.75

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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.