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Finding the Fourth Proportional to 14,428.88, 21,642 and 4,568

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Solution

The fourth proportional to 14,428.88, 21,642 and 4,568 is: 6,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.88 : 21,642 = 4,568 : x
  2. Step 2: Convert to fraction form
    14,428.88/21,642 = 4,568/x
  3. Step 3: Cross multiply
    14,428.88x = 21,642 × 4,568
  4. Step 4: Simplify right side
    14,428.88x = 98,860,656
  5. Step 5: Solve for x
    x = 98,860,656/14,428.88
  6. Step 6: Final answer
    x = 6,851.58

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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.