Home / 20,738.35-31,107.49-16,558.77

Finding the Fourth Proportional to 20,738.35, 31,107.49 and 16,558.77

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Solution

The fourth proportional to 20,738.35, 31,107.49 and 16,558.77 is: 24,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.35 : 31,107.49 = 16,558.77 : x
  2. Step 2: Convert to fraction form
    20,738.35/31,107.49 = 16,558.77/x
  3. Step 3: Cross multiply
    20,738.35x = 31,107.49 × 16,558.77
  4. Step 4: Simplify right side
    20,738.35x = 515,101,940.59
  5. Step 5: Solve for x
    x = 515,101,940.59/20,738.35
  6. Step 6: Final answer
    x = 24,838.13

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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.