Home / 20,671.97-28,525.10-12,173.58

Finding the Fourth Proportional to 20,671.97, 28,525.10 and 12,173.58

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Solution

The fourth proportional to 20,671.97, 28,525.10 and 12,173.58 is: 16,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.97 : 28,525.10 = 12,173.58 : x
  2. Step 2: Convert to fraction form
    20,671.97/28,525.10 = 12,173.58/x
  3. Step 3: Cross multiply
    20,671.97x = 28,525.10 × 12,173.58
  4. Step 4: Simplify right side
    20,671.97x = 347,252,525.99
  5. Step 5: Solve for x
    x = 347,252,525.99/20,671.97
  6. Step 6: Final answer
    x = 16,798.24

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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.