Home / 20,898.35-31,311.09-17,410.77

Finding the Fourth Proportional to 20,898.35, 31,311.09 and 17,410.77

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Solution

The fourth proportional to 20,898.35, 31,311.09 and 17,410.77 is: 26,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.35 : 31,311.09 = 17,410.77 : x
  2. Step 2: Convert to fraction form
    20,898.35/31,311.09 = 17,410.77/x
  3. Step 3: Cross multiply
    20,898.35x = 31,311.09 × 17,410.77
  4. Step 4: Simplify right side
    20,898.35x = 545,150,186.44
  5. Step 5: Solve for x
    x = 545,150,186.44/20,898.35
  6. Step 6: Final answer
    x = 26,085.81

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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.