Home / 21,372.88-32,066.62-11,513.16

Finding the Fourth Proportional to 21,372.88, 32,066.62 and 11,513.16

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Solution

The fourth proportional to 21,372.88, 32,066.62 and 11,513.16 is: 17,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.88 : 32,066.62 = 11,513.16 : x
  2. Step 2: Convert to fraction form
    21,372.88/32,066.62 = 11,513.16/x
  3. Step 3: Cross multiply
    21,372.88x = 32,066.62 × 11,513.16
  4. Step 4: Simplify right side
    21,372.88x = 369,188,126.72
  5. Step 5: Solve for x
    x = 369,188,126.72/21,372.88
  6. Step 6: Final answer
    x = 17,273.67

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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.