Home / 31,446.23-47,170.49-8,072.60

Finding the Fourth Proportional to 31,446.23, 47,170.49 and 8,072.60

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Solution

The fourth proportional to 31,446.23, 47,170.49 and 8,072.60 is: 12,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.23 : 47,170.49 = 8,072.60 : x
  2. Step 2: Convert to fraction form
    31,446.23/47,170.49 = 8,072.60/x
  3. Step 3: Cross multiply
    31,446.23x = 47,170.49 × 8,072.60
  4. Step 4: Simplify right side
    31,446.23x = 380,788,221.36
  5. Step 5: Solve for x
    x = 380,788,221.36/31,446.23
  6. Step 6: Final answer
    x = 12,109.19

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1.5x scale

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.