Home / 28,732.18-39,627.92-19,662.92

Finding the Fourth Proportional to 28,732.18, 39,627.92 and 19,662.92

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Solution

The fourth proportional to 28,732.18, 39,627.92 and 19,662.92 is: 27,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.18 : 39,627.92 = 19,662.92 : x
  2. Step 2: Convert to fraction form
    28,732.18/39,627.92 = 19,662.92/x
  3. Step 3: Cross multiply
    28,732.18x = 39,627.92 × 19,662.92
  4. Step 4: Simplify right side
    28,732.18x = 779,200,324.27
  5. Step 5: Solve for x
    x = 779,200,324.27/28,732.18
  6. Step 6: Final answer
    x = 27,119.43

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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.