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Finding the Fourth Proportional to 21,765.93, 32,647.07 and 15,414.54

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Solution

The fourth proportional to 21,765.93, 32,647.07 and 15,414.54 is: 23,120.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.93 : 32,647.07 = 15,414.54 : x
  2. Step 2: Convert to fraction form
    21,765.93/32,647.07 = 15,414.54/x
  3. Step 3: Cross multiply
    21,765.93x = 32,647.07 × 15,414.54
  4. Step 4: Simplify right side
    21,765.93x = 503,239,336.29
  5. Step 5: Solve for x
    x = 503,239,336.29/21,765.93
  6. Step 6: Final answer
    x = 23,120.51

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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.