Home / 31,834.20-47,739.15-9,640.20

Finding the Fourth Proportional to 31,834.20, 47,739.15 and 9,640.20

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Solution

The fourth proportional to 31,834.20, 47,739.15 and 9,640.20 is: 14,456.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.20 : 47,739.15 = 9,640.20 : x
  2. Step 2: Convert to fraction form
    31,834.20/47,739.15 = 9,640.20/x
  3. Step 3: Cross multiply
    31,834.20x = 47,739.15 × 9,640.20
  4. Step 4: Simplify right side
    31,834.20x = 460,214,953.83
  5. Step 5: Solve for x
    x = 460,214,953.83/31,834.20
  6. Step 6: Final answer
    x = 14,456.62

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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.