Home / 20,178.35-27,859.83-12,627.73

Finding the Fourth Proportional to 20,178.35, 27,859.83 and 12,627.73

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Solution

The fourth proportional to 20,178.35, 27,859.83 and 12,627.73 is: 17,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.35 : 27,859.83 = 12,627.73 : x
  2. Step 2: Convert to fraction form
    20,178.35/27,859.83 = 12,627.73/x
  3. Step 3: Cross multiply
    20,178.35x = 27,859.83 × 12,627.73
  4. Step 4: Simplify right side
    20,178.35x = 351,806,271.79
  5. Step 5: Solve for x
    x = 351,806,271.79/20,178.35
  6. Step 6: Final answer
    x = 17,434.84

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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.