Home / 20,230.83-27,907.11-12,664.02

Finding the Fourth Proportional to 20,230.83, 27,907.11 and 12,664.02

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Solution

The fourth proportional to 20,230.83, 27,907.11 and 12,664.02 is: 17,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.83 : 27,907.11 = 12,664.02 : x
  2. Step 2: Convert to fraction form
    20,230.83/27,907.11 = 12,664.02/x
  3. Step 3: Cross multiply
    20,230.83x = 27,907.11 × 12,664.02
  4. Step 4: Simplify right side
    20,230.83x = 353,416,199.18
  5. Step 5: Solve for x
    x = 353,416,199.18/20,230.83
  6. Step 6: Final answer
    x = 17,469.19

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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.