Home / 20,814.54-28,706.31-16,278.54

Finding the Fourth Proportional to 20,814.54, 28,706.31 and 16,278.54

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Solution

The fourth proportional to 20,814.54, 28,706.31 and 16,278.54 is: 22,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.54 : 28,706.31 = 16,278.54 : x
  2. Step 2: Convert to fraction form
    20,814.54/28,706.31 = 16,278.54/x
  3. Step 3: Cross multiply
    20,814.54x = 28,706.31 × 16,278.54
  4. Step 4: Simplify right side
    20,814.54x = 467,296,815.59
  5. Step 5: Solve for x
    x = 467,296,815.59/20,814.54
  6. Step 6: Final answer
    x = 22,450.50

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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.