Home / 20,178.28-27,826.86-12,110.68

Finding the Fourth Proportional to 20,178.28, 27,826.86 and 12,110.68

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Solution

The fourth proportional to 20,178.28, 27,826.86 and 12,110.68 is: 16,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.28 : 27,826.86 = 12,110.68 : x
  2. Step 2: Convert to fraction form
    20,178.28/27,826.86 = 12,110.68/x
  3. Step 3: Cross multiply
    20,178.28x = 27,826.86 × 12,110.68
  4. Step 4: Simplify right side
    20,178.28x = 337,002,196.86
  5. Step 5: Solve for x
    x = 337,002,196.86/20,178.28
  6. Step 6: Final answer
    x = 16,701.24

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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.