Home / 20,273.46-27,977.51-11,321.07

Finding the Fourth Proportional to 20,273.46, 27,977.51 and 11,321.07

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Solution

The fourth proportional to 20,273.46, 27,977.51 and 11,321.07 is: 15,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.46 : 27,977.51 = 11,321.07 : x
  2. Step 2: Convert to fraction form
    20,273.46/27,977.51 = 11,321.07/x
  3. Step 3: Cross multiply
    20,273.46x = 27,977.51 × 11,321.07
  4. Step 4: Simplify right side
    20,273.46x = 316,735,377.44
  5. Step 5: Solve for x
    x = 316,735,377.44/20,273.46
  6. Step 6: Final answer
    x = 15,623.15

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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.