Home / 20,081.84-27,713.88-12,532.64

Finding the Fourth Proportional to 20,081.84, 27,713.88 and 12,532.64

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Solution

The fourth proportional to 20,081.84, 27,713.88 and 12,532.64 is: 17,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.84 : 27,713.88 = 12,532.64 : x
  2. Step 2: Convert to fraction form
    20,081.84/27,713.88 = 12,532.64/x
  3. Step 3: Cross multiply
    20,081.84x = 27,713.88 × 12,532.64
  4. Step 4: Simplify right side
    20,081.84x = 347,328,081.04
  5. Step 5: Solve for x
    x = 347,328,081.04/20,081.84
  6. Step 6: Final answer
    x = 17,295.63

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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.