Home / 19,845.20-27,386.66-10,892.54

Finding the Fourth Proportional to 19,845.20, 27,386.66 and 10,892.54

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Solution

The fourth proportional to 19,845.20, 27,386.66 and 10,892.54 is: 15,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.20 : 27,386.66 = 10,892.54 : x
  2. Step 2: Convert to fraction form
    19,845.20/27,386.66 = 10,892.54/x
  3. Step 3: Cross multiply
    19,845.20x = 27,386.66 × 10,892.54
  4. Step 4: Simplify right side
    19,845.20x = 298,310,289.52
  5. Step 5: Solve for x
    x = 298,310,289.52/19,845.20
  6. Step 6: Final answer
    x = 15,031.86

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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.