Home / 39,185.60-58,787.04-12,889.28

Finding the Fourth Proportional to 39,185.60, 58,787.04 and 12,889.28

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Solution

The fourth proportional to 39,185.60, 58,787.04 and 12,889.28 is: 19,336.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,185.60 : 58,787.04 = 12,889.28 : x
  2. Step 2: Convert to fraction form
    39,185.60/58,787.04 = 12,889.28/x
  3. Step 3: Cross multiply
    39,185.60x = 58,787.04 × 12,889.28
  4. Step 4: Simplify right side
    39,185.60x = 757,722,618.93
  5. Step 5: Solve for x
    x = 757,722,618.93/39,185.60
  6. Step 6: Final answer
    x = 19,336.76

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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.