Home / 20,834.76-31,169.22-18,093.72

Finding the Fourth Proportional to 20,834.76, 31,169.22 and 18,093.72

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Solution

The fourth proportional to 20,834.76, 31,169.22 and 18,093.72 is: 27,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.76 : 31,169.22 = 18,093.72 : x
  2. Step 2: Convert to fraction form
    20,834.76/31,169.22 = 18,093.72/x
  3. Step 3: Cross multiply
    20,834.76x = 31,169.22 × 18,093.72
  4. Step 4: Simplify right side
    20,834.76x = 563,967,139.30
  5. Step 5: Solve for x
    x = 563,967,139.30/20,834.76
  6. Step 6: Final answer
    x = 27,068.57

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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.