Home / 20,246.10-27,939.30-11,293.38

Finding the Fourth Proportional to 20,246.10, 27,939.30 and 11,293.38

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Solution

The fourth proportional to 20,246.10, 27,939.30 and 11,293.38 is: 15,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.10 : 27,939.30 = 11,293.38 : x
  2. Step 2: Convert to fraction form
    20,246.10/27,939.30 = 11,293.38/x
  3. Step 3: Cross multiply
    20,246.10x = 27,939.30 × 11,293.38
  4. Step 4: Simplify right side
    20,246.10x = 315,528,935.67
  5. Step 5: Solve for x
    x = 315,528,935.67/20,246.10
  6. Step 6: Final answer
    x = 15,584.68

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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.