Home / 20,796.72-28,706.31-16,555.56

Finding the Fourth Proportional to 20,796.72, 28,706.31 and 16,555.56

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Solution

The fourth proportional to 20,796.72, 28,706.31 and 16,555.56 is: 22,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.72 : 28,706.31 = 16,555.56 : x
  2. Step 2: Convert to fraction form
    20,796.72/28,706.31 = 16,555.56/x
  3. Step 3: Cross multiply
    20,796.72x = 28,706.31 × 16,555.56
  4. Step 4: Simplify right side
    20,796.72x = 475,249,037.58
  5. Step 5: Solve for x
    x = 475,249,037.58/20,796.72
  6. Step 6: Final answer
    x = 22,852.12

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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.