Home / 20,012.94-27,615.46-11,945.10

Finding the Fourth Proportional to 20,012.94, 27,615.46 and 11,945.10

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Solution

The fourth proportional to 20,012.94, 27,615.46 and 11,945.10 is: 16,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.94 : 27,615.46 = 11,945.10 : x
  2. Step 2: Convert to fraction form
    20,012.94/27,615.46 = 11,945.10/x
  3. Step 3: Cross multiply
    20,012.94x = 27,615.46 × 11,945.10
  4. Step 4: Simplify right side
    20,012.94x = 329,869,431.25
  5. Step 5: Solve for x
    x = 329,869,431.25/20,012.94
  6. Step 6: Final answer
    x = 16,482.81

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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.