Home / 38,782.92-58,185.72-12,487.08

Finding the Fourth Proportional to 38,782.92, 58,185.72 and 12,487.08

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Solution

The fourth proportional to 38,782.92, 58,185.72 and 12,487.08 is: 18,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.92 : 58,185.72 = 12,487.08 : x
  2. Step 2: Convert to fraction form
    38,782.92/58,185.72 = 12,487.08/x
  3. Step 3: Cross multiply
    38,782.92x = 58,185.72 × 12,487.08
  4. Step 4: Simplify right side
    38,782.92x = 726,569,740.50
  5. Step 5: Solve for x
    x = 726,569,740.50/38,782.92
  6. Step 6: Final answer
    x = 18,734.27

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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.