Home / 21,732.72-29,989.08-17,267.28

Finding the Fourth Proportional to 21,732.72, 29,989.08 and 17,267.28

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Solution

The fourth proportional to 21,732.72, 29,989.08 and 17,267.28 is: 23,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.72 : 29,989.08 = 17,267.28 : x
  2. Step 2: Convert to fraction form
    21,732.72/29,989.08 = 17,267.28/x
  3. Step 3: Cross multiply
    21,732.72x = 29,989.08 × 17,267.28
  4. Step 4: Simplify right side
    21,732.72x = 517,829,841.30
  5. Step 5: Solve for x
    x = 517,829,841.30/21,732.72
  6. Step 6: Final answer
    x = 23,827.20

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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.