Home / 31,351.90-47,027.33-12,631.48

Finding the Fourth Proportional to 31,351.90, 47,027.33 and 12,631.48

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Solution

The fourth proportional to 31,351.90, 47,027.33 and 12,631.48 is: 18,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.90 : 47,027.33 = 12,631.48 : x
  2. Step 2: Convert to fraction form
    31,351.90/47,027.33 = 12,631.48/x
  3. Step 3: Cross multiply
    31,351.90x = 47,027.33 × 12,631.48
  4. Step 4: Simplify right side
    31,351.90x = 594,024,914.44
  5. Step 5: Solve for x
    x = 594,024,914.44/31,351.90
  6. Step 6: Final answer
    x = 18,947.02

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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.