Home / 21,025.02-31,546.84-11,161.92

Finding the Fourth Proportional to 21,025.02, 31,546.84 and 11,161.92

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Solution

The fourth proportional to 21,025.02, 31,546.84 and 11,161.92 is: 16,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.02 : 31,546.84 = 11,161.92 : x
  2. Step 2: Convert to fraction form
    21,025.02/31,546.84 = 11,161.92/x
  3. Step 3: Cross multiply
    21,025.02x = 31,546.84 × 11,161.92
  4. Step 4: Simplify right side
    21,025.02x = 352,123,304.33
  5. Step 5: Solve for x
    x = 352,123,304.33/21,025.02
  6. Step 6: Final answer
    x = 16,747.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.