Home / 20,137.90-27,748.83-14,176.30

Finding the Fourth Proportional to 20,137.90, 27,748.83 and 14,176.30

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Solution

The fourth proportional to 20,137.90, 27,748.83 and 14,176.30 is: 19,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.90 : 27,748.83 = 14,176.30 : x
  2. Step 2: Convert to fraction form
    20,137.90/27,748.83 = 14,176.30/x
  3. Step 3: Cross multiply
    20,137.90x = 27,748.83 × 14,176.30
  4. Step 4: Simplify right side
    20,137.90x = 393,375,738.73
  5. Step 5: Solve for x
    x = 393,375,738.73/20,137.90
  6. Step 6: Final answer
    x = 19,534.10

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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.