Home / 35,636.12-49,177.11-19,720.56

Finding the Fourth Proportional to 35,636.12, 49,177.11 and 19,720.56

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Solution

The fourth proportional to 35,636.12, 49,177.11 and 19,720.56 is: 27,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,636.12 : 49,177.11 = 19,720.56 : x
  2. Step 2: Convert to fraction form
    35,636.12/49,177.11 = 19,720.56/x
  3. Step 3: Cross multiply
    35,636.12x = 49,177.11 × 19,720.56
  4. Step 4: Simplify right side
    35,636.12x = 969,800,148.38
  5. Step 5: Solve for x
    x = 969,800,148.38/35,636.12
  6. Step 6: Final answer
    x = 27,213.97

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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.