Home / 38,964.20-58,409.31-12,650.54

Finding the Fourth Proportional to 38,964.20, 58,409.31 and 12,650.54

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Solution

The fourth proportional to 38,964.20, 58,409.31 and 12,650.54 is: 18,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964.20 : 58,409.31 = 12,650.54 : x
  2. Step 2: Convert to fraction form
    38,964.20/58,409.31 = 12,650.54/x
  3. Step 3: Cross multiply
    38,964.20x = 58,409.31 × 12,650.54
  4. Step 4: Simplify right side
    38,964.20x = 738,909,312.53
  5. Step 5: Solve for x
    x = 738,909,312.53/38,964.20
  6. Step 6: Final answer
    x = 18,963.80

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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.