Home / 27,672.45-38,176.43-18,114.68

Finding the Fourth Proportional to 27,672.45, 38,176.43 and 18,114.68

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Solution

The fourth proportional to 27,672.45, 38,176.43 and 18,114.68 is: 24,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.45 : 38,176.43 = 18,114.68 : x
  2. Step 2: Convert to fraction form
    27,672.45/38,176.43 = 18,114.68/x
  3. Step 3: Cross multiply
    27,672.45x = 38,176.43 × 18,114.68
  4. Step 4: Simplify right side
    27,672.45x = 691,553,531.54
  5. Step 5: Solve for x
    x = 691,553,531.54/27,672.45
  6. Step 6: Final answer
    x = 24,990.69

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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.