Home / 38,787.41-58,190.22-12,491.16

Finding the Fourth Proportional to 38,787.41, 58,190.22 and 12,491.16

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Solution

The fourth proportional to 38,787.41, 58,190.22 and 12,491.16 is: 18,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.41 : 58,190.22 = 12,491.16 : x
  2. Step 2: Convert to fraction form
    38,787.41/58,190.22 = 12,491.16/x
  3. Step 3: Cross multiply
    38,787.41x = 58,190.22 × 12,491.16
  4. Step 4: Simplify right side
    38,787.41x = 726,863,348.46
  5. Step 5: Solve for x
    x = 726,863,348.46/38,787.41
  6. Step 6: Final answer
    x = 18,739.67

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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.