Home / 31,624.70-47,439.79-12,906.02

Finding the Fourth Proportional to 31,624.70, 47,439.79 and 12,906.02

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Solution

The fourth proportional to 31,624.70, 47,439.79 and 12,906.02 is: 19,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.70 : 47,439.79 = 12,906.02 : x
  2. Step 2: Convert to fraction form
    31,624.70/47,439.79 = 12,906.02/x
  3. Step 3: Cross multiply
    31,624.70x = 47,439.79 × 12,906.02
  4. Step 4: Simplify right side
    31,624.70x = 612,258,964.87
  5. Step 5: Solve for x
    x = 612,258,964.87/31,624.70
  6. Step 6: Final answer
    x = 19,360.15

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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.