Home / 20,205.44-27,892.10-12,650.06

Finding the Fourth Proportional to 20,205.44, 27,892.10 and 12,650.06

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Solution

The fourth proportional to 20,205.44, 27,892.10 and 12,650.06 is: 17,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.44 : 27,892.10 = 12,650.06 : x
  2. Step 2: Convert to fraction form
    20,205.44/27,892.10 = 12,650.06/x
  3. Step 3: Cross multiply
    20,205.44x = 27,892.10 × 12,650.06
  4. Step 4: Simplify right side
    20,205.44x = 352,836,535.82
  5. Step 5: Solve for x
    x = 352,836,535.82/20,205.44
  6. Step 6: Final answer
    x = 17,462.46

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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.