Home / 27,141.32-40,651.82-20,855.06

Finding the Fourth Proportional to 27,141.32, 40,651.82 and 20,855.06

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Solution

The fourth proportional to 27,141.32, 40,651.82 and 20,855.06 is: 31,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.32 : 40,651.82 = 20,855.06 : x
  2. Step 2: Convert to fraction form
    27,141.32/40,651.82 = 20,855.06/x
  3. Step 3: Cross multiply
    27,141.32x = 40,651.82 × 20,855.06
  4. Step 4: Simplify right side
    27,141.32x = 847,795,994.09
  5. Step 5: Solve for x
    x = 847,795,994.09/27,141.32
  6. Step 6: Final answer
    x = 31,236.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.