Home / 20,167.28-27,826.86-12,210.26

Finding the Fourth Proportional to 20,167.28, 27,826.86 and 12,210.26

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Solution

The fourth proportional to 20,167.28, 27,826.86 and 12,210.26 is: 16,847.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.28 : 27,826.86 = 12,210.26 : x
  2. Step 2: Convert to fraction form
    20,167.28/27,826.86 = 12,210.26/x
  3. Step 3: Cross multiply
    20,167.28x = 27,826.86 × 12,210.26
  4. Step 4: Simplify right side
    20,167.28x = 339,773,195.58
  5. Step 5: Solve for x
    x = 339,773,195.58/20,167.28
  6. Step 6: Final answer
    x = 16,847.75

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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.