Home / 31,940.06-47,903.60-8,561.04

Finding the Fourth Proportional to 31,940.06, 47,903.60 and 8,561.04

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Solution

The fourth proportional to 31,940.06, 47,903.60 and 8,561.04 is: 12,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.06 : 47,903.60 = 8,561.04 : x
  2. Step 2: Convert to fraction form
    31,940.06/47,903.60 = 8,561.04/x
  3. Step 3: Cross multiply
    31,940.06x = 47,903.60 × 8,561.04
  4. Step 4: Simplify right side
    31,940.06x = 410,104,635.74
  5. Step 5: Solve for x
    x = 410,104,635.74/31,940.06
  6. Step 6: Final answer
    x = 12,839.82

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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.