Home / 27,121.68-37,428.84-15,185.52

Finding the Fourth Proportional to 27,121.68, 37,428.84 and 15,185.52

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Solution

The fourth proportional to 27,121.68, 37,428.84 and 15,185.52 is: 20,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.68 : 37,428.84 = 15,185.52 : x
  2. Step 2: Convert to fraction form
    27,121.68/37,428.84 = 15,185.52/x
  3. Step 3: Cross multiply
    27,121.68x = 37,428.84 × 15,185.52
  4. Step 4: Simplify right side
    27,121.68x = 568,376,398.40
  5. Step 5: Solve for x
    x = 568,376,398.40/27,121.68
  6. Step 6: Final answer
    x = 20,956.53

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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.