Home / 27,141.69-40,652.39-20,855.43

Finding the Fourth Proportional to 27,141.69, 40,652.39 and 20,855.43

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Solution

The fourth proportional to 27,141.69, 40,652.39 and 20,855.43 is: 31,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.69 : 40,652.39 = 20,855.43 : x
  2. Step 2: Convert to fraction form
    27,141.69/40,652.39 = 20,855.43/x
  3. Step 3: Cross multiply
    27,141.69x = 40,652.39 × 20,855.43
  4. Step 4: Simplify right side
    27,141.69x = 847,822,969.70
  5. Step 5: Solve for x
    x = 847,822,969.70/27,141.69
  6. Step 6: Final answer
    x = 31,236.93

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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.