Home / 31,550.03-43,450.46-30,861.13

Finding the Fourth Proportional to 31,550.03, 43,450.46 and 30,861.13

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Solution

The fourth proportional to 31,550.03, 43,450.46 and 30,861.13 is: 42,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.03 : 43,450.46 = 30,861.13 : x
  2. Step 2: Convert to fraction form
    31,550.03/43,450.46 = 30,861.13/x
  3. Step 3: Cross multiply
    31,550.03x = 43,450.46 × 30,861.13
  4. Step 4: Simplify right side
    31,550.03x = 1,340,930,294.62
  5. Step 5: Solve for x
    x = 1,340,930,294.62/31,550.03
  6. Step 6: Final answer
    x = 42,501.71

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.