Home / 27,141.82-40,652.57-20,855.56

Finding the Fourth Proportional to 27,141.82, 40,652.57 and 20,855.56

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Solution

The fourth proportional to 27,141.82, 40,652.57 and 20,855.56 is: 31,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.82 : 40,652.57 = 20,855.56 : x
  2. Step 2: Convert to fraction form
    27,141.82/40,652.57 = 20,855.56/x
  3. Step 3: Cross multiply
    27,141.82x = 40,652.57 × 20,855.56
  4. Step 4: Simplify right side
    27,141.82x = 847,831,909.53
  5. Step 5: Solve for x
    x = 847,831,909.53/27,141.82
  6. Step 6: Final answer
    x = 31,237.11

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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.