Home / 19,788.66-29,639.84-9,910.70

Finding the Fourth Proportional to 19,788.66, 29,639.84 and 9,910.70

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Solution

The fourth proportional to 19,788.66, 29,639.84 and 9,910.70 is: 14,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.66 : 29,639.84 = 9,910.70 : x
  2. Step 2: Convert to fraction form
    19,788.66/29,639.84 = 9,910.70/x
  3. Step 3: Cross multiply
    19,788.66x = 29,639.84 × 9,910.70
  4. Step 4: Simplify right side
    19,788.66x = 293,751,562.29
  5. Step 5: Solve for x
    x = 293,751,562.29/19,788.66
  6. Step 6: Final answer
    x = 14,844.44

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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.