Home / 31,550.04-43,450.46-30,861.12

Finding the Fourth Proportional to 31,550.04, 43,450.46 and 30,861.12

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Solution

The fourth proportional to 31,550.04, 43,450.46 and 30,861.12 is: 42,501.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.04 : 43,450.46 = 30,861.12 : x
  2. Step 2: Convert to fraction form
    31,550.04/43,450.46 = 30,861.12/x
  3. Step 3: Cross multiply
    31,550.04x = 43,450.46 × 30,861.12
  4. Step 4: Simplify right side
    31,550.04x = 1,340,929,860.12
  5. Step 5: Solve for x
    x = 1,340,929,860.12/31,550.04
  6. Step 6: Final answer
    x = 42,501.68

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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.