Home / 20,375.92-28,100.82-14,709.16

Finding the Fourth Proportional to 20,375.92, 28,100.82 and 14,709.16

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Solution

The fourth proportional to 20,375.92, 28,100.82 and 14,709.16 is: 20,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.92 : 28,100.82 = 14,709.16 : x
  2. Step 2: Convert to fraction form
    20,375.92/28,100.82 = 14,709.16/x
  3. Step 3: Cross multiply
    20,375.92x = 28,100.82 × 14,709.16
  4. Step 4: Simplify right side
    20,375.92x = 413,339,457.51
  5. Step 5: Solve for x
    x = 413,339,457.51/20,375.92
  6. Step 6: Final answer
    x = 20,285.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.