Home / 19,672.16-27,147.21-10,719.72

Finding the Fourth Proportional to 19,672.16, 27,147.21 and 10,719.72

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Solution

The fourth proportional to 19,672.16, 27,147.21 and 10,719.72 is: 14,793.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.16 : 27,147.21 = 10,719.72 : x
  2. Step 2: Convert to fraction form
    19,672.16/27,147.21 = 10,719.72/x
  3. Step 3: Cross multiply
    19,672.16x = 27,147.21 × 10,719.72
  4. Step 4: Simplify right side
    19,672.16x = 291,010,489.98
  5. Step 5: Solve for x
    x = 291,010,489.98/19,672.16
  6. Step 6: Final answer
    x = 14,793.02

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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.