Home / 20,140.48-27,793.83-12,182.68

Finding the Fourth Proportional to 20,140.48, 27,793.83 and 12,182.68

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Solution

The fourth proportional to 20,140.48, 27,793.83 and 12,182.68 is: 16,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.48 : 27,793.83 = 12,182.68 : x
  2. Step 2: Convert to fraction form
    20,140.48/27,793.83 = 12,182.68/x
  3. Step 3: Cross multiply
    20,140.48x = 27,793.83 × 12,182.68
  4. Step 4: Simplify right side
    20,140.48x = 338,603,336.86
  5. Step 5: Solve for x
    x = 338,603,336.86/20,140.48
  6. Step 6: Final answer
    x = 16,812.08

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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.