Home / 20,246.36-27,939.30-11,862.68

Finding the Fourth Proportional to 20,246.36, 27,939.30 and 11,862.68

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Solution

The fourth proportional to 20,246.36, 27,939.30 and 11,862.68 is: 16,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.36 : 27,939.30 = 11,862.68 : x
  2. Step 2: Convert to fraction form
    20,246.36/27,939.30 = 11,862.68/x
  3. Step 3: Cross multiply
    20,246.36x = 27,939.30 × 11,862.68
  4. Step 4: Simplify right side
    20,246.36x = 331,434,975.32
  5. Step 5: Solve for x
    x = 331,434,975.32/20,246.36
  6. Step 6: Final answer
    x = 16,370.10

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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.