Home / 21,757.85-30,025.57-12,197.69

Finding the Fourth Proportional to 21,757.85, 30,025.57 and 12,197.69

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Solution

The fourth proportional to 21,757.85, 30,025.57 and 12,197.69 is: 16,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.85 : 30,025.57 = 12,197.69 : x
  2. Step 2: Convert to fraction form
    21,757.85/30,025.57 = 12,197.69/x
  3. Step 3: Cross multiply
    21,757.85x = 30,025.57 × 12,197.69
  4. Step 4: Simplify right side
    21,757.85x = 366,242,383.82
  5. Step 5: Solve for x
    x = 366,242,383.82/21,757.85
  6. Step 6: Final answer
    x = 16,832.66

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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.