Home / 27,607.30-41,423.10-12,808.60

Finding the Fourth Proportional to 27,607.30, 41,423.10 and 12,808.60

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Solution

The fourth proportional to 27,607.30, 41,423.10 and 12,808.60 is: 19,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,607.30 : 41,423.10 = 12,808.60 : x
  2. Step 2: Convert to fraction form
    27,607.30/41,423.10 = 12,808.60/x
  3. Step 3: Cross multiply
    27,607.30x = 41,423.10 × 12,808.60
  4. Step 4: Simplify right side
    27,607.30x = 530,571,918.66
  5. Step 5: Solve for x
    x = 530,571,918.66/27,607.30
  6. Step 6: Final answer
    x = 19,218.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.