Home / 19,620.10-27,081.93-12,546.55

Finding the Fourth Proportional to 19,620.10, 27,081.93 and 12,546.55

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Solution

The fourth proportional to 19,620.10, 27,081.93 and 12,546.55 is: 17,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.10 : 27,081.93 = 12,546.55 : x
  2. Step 2: Convert to fraction form
    19,620.10/27,081.93 = 12,546.55/x
  3. Step 3: Cross multiply
    19,620.10x = 27,081.93 × 12,546.55
  4. Step 4: Simplify right side
    19,620.10x = 339,784,788.84
  5. Step 5: Solve for x
    x = 339,784,788.84/19,620.10
  6. Step 6: Final answer
    x = 17,318.20

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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.