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Finding the Fourth Proportional to 17,477.10, 24,116.31 and 9,920.70

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Solution

The fourth proportional to 17,477.10, 24,116.31 and 9,920.70 is: 13,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,477.10 : 24,116.31 = 9,920.70 : x
  2. Step 2: Convert to fraction form
    17,477.10/24,116.31 = 9,920.70/x
  3. Step 3: Cross multiply
    17,477.10x = 24,116.31 × 9,920.70
  4. Step 4: Simplify right side
    17,477.10x = 239,250,676.62
  5. Step 5: Solve for x
    x = 239,250,676.62/17,477.10
  6. Step 6: Final answer
    x = 13,689.38

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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.