Home / 18,461.82-27,711.51-13,516.74

Finding the Fourth Proportional to 18,461.82, 27,711.51 and 13,516.74

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Solution

The fourth proportional to 18,461.82, 27,711.51 and 13,516.74 is: 20,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.82 : 27,711.51 = 13,516.74 : x
  2. Step 2: Convert to fraction form
    18,461.82/27,711.51 = 13,516.74/x
  3. Step 3: Cross multiply
    18,461.82x = 27,711.51 × 13,516.74
  4. Step 4: Simplify right side
    18,461.82x = 374,569,275.68
  5. Step 5: Solve for x
    x = 374,569,275.68/18,461.82
  6. Step 6: Final answer
    x = 20,288.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.