Home / 19,619.23-27,080.40-12,910.03

Finding the Fourth Proportional to 19,619.23, 27,080.40 and 12,910.03

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Solution

The fourth proportional to 19,619.23, 27,080.40 and 12,910.03 is: 17,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.23 : 27,080.40 = 12,910.03 : x
  2. Step 2: Convert to fraction form
    19,619.23/27,080.40 = 12,910.03/x
  3. Step 3: Cross multiply
    19,619.23x = 27,080.40 × 12,910.03
  4. Step 4: Simplify right side
    19,619.23x = 349,608,576.46
  5. Step 5: Solve for x
    x = 349,608,576.46/19,619.23
  6. Step 6: Final answer
    x = 17,819.69

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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.