Home / 20,164.32-27,826.87-12,204.55

Finding the Fourth Proportional to 20,164.32, 27,826.87 and 12,204.55

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Solution

The fourth proportional to 20,164.32, 27,826.87 and 12,204.55 is: 16,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.32 : 27,826.87 = 12,204.55 : x
  2. Step 2: Convert to fraction form
    20,164.32/27,826.87 = 12,204.55/x
  3. Step 3: Cross multiply
    20,164.32x = 27,826.87 × 12,204.55
  4. Step 4: Simplify right side
    20,164.32x = 339,614,426.26
  5. Step 5: Solve for x
    x = 339,614,426.26/20,164.32
  6. Step 6: Final answer
    x = 16,842.34

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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.