Home / 27,748.68-38,293.86-15,174.36

Finding the Fourth Proportional to 27,748.68, 38,293.86 and 15,174.36

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Solution

The fourth proportional to 27,748.68, 38,293.86 and 15,174.36 is: 20,940.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.68 : 38,293.86 = 15,174.36 : x
  2. Step 2: Convert to fraction form
    27,748.68/38,293.86 = 15,174.36/x
  3. Step 3: Cross multiply
    27,748.68x = 38,293.86 × 15,174.36
  4. Step 4: Simplify right side
    27,748.68x = 581,084,817.43
  5. Step 5: Solve for x
    x = 581,084,817.43/27,748.68
  6. Step 6: Final answer
    x = 20,940.99

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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.