Home / 27,653.14-38,149.19-18,697.40

Finding the Fourth Proportional to 27,653.14, 38,149.19 and 18,697.40

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Solution

The fourth proportional to 27,653.14, 38,149.19 and 18,697.40 is: 25,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.14 : 38,149.19 = 18,697.40 : x
  2. Step 2: Convert to fraction form
    27,653.14/38,149.19 = 18,697.40/x
  3. Step 3: Cross multiply
    27,653.14x = 38,149.19 × 18,697.40
  4. Step 4: Simplify right side
    27,653.14x = 713,290,665.11
  5. Step 5: Solve for x
    x = 713,290,665.11/27,653.14
  6. Step 6: Final answer
    x = 25,794.20

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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.