Home / 20,112.56-27,754.08-12,150.08

Finding the Fourth Proportional to 20,112.56, 27,754.08 and 12,150.08

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Solution

The fourth proportional to 20,112.56, 27,754.08 and 12,150.08 is: 16,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.56 : 27,754.08 = 12,150.08 : x
  2. Step 2: Convert to fraction form
    20,112.56/27,754.08 = 12,150.08/x
  3. Step 3: Cross multiply
    20,112.56x = 27,754.08 × 12,150.08
  4. Step 4: Simplify right side
    20,112.56x = 337,214,292.33
  5. Step 5: Solve for x
    x = 337,214,292.33/20,112.56
  6. Step 6: Final answer
    x = 16,766.35

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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.