Home / 69,429.30-104,143.96-16,838.78

Finding the Fourth Proportional to 69,429.30, 104,143.96 and 16,838.78

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Solution

The fourth proportional to 69,429.30, 104,143.96 and 16,838.78 is: 25,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.30 : 104,143.96 = 16,838.78 : x
  2. Step 2: Convert to fraction form
    69,429.30/104,143.96 = 16,838.78/x
  3. Step 3: Cross multiply
    69,429.30x = 104,143.96 × 16,838.78
  4. Step 4: Simplify right side
    69,429.30x = 1,753,657,230.77
  5. Step 5: Solve for x
    x = 1,753,657,230.77/69,429.30
  6. Step 6: Final answer
    x = 25,258.17

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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.