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Finding the Fourth Proportional to 18,220.29, 27,332.01 and 5,072.82

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Solution

The fourth proportional to 18,220.29, 27,332.01 and 5,072.82 is: 7,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.29 : 27,332.01 = 5,072.82 : x
  2. Step 2: Convert to fraction form
    18,220.29/27,332.01 = 5,072.82/x
  3. Step 3: Cross multiply
    18,220.29x = 27,332.01 × 5,072.82
  4. Step 4: Simplify right side
    18,220.29x = 138,650,366.97
  5. Step 5: Solve for x
    x = 138,650,366.97/18,220.29
  6. Step 6: Final answer
    x = 7,609.67

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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.