Home / 31,829.40-43,585-30,574.60

Finding the Fourth Proportional to 31,829.40, 43,585 and 30,574.60

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Solution

The fourth proportional to 31,829.40, 43,585 and 30,574.60 is: 41,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,829.40 : 43,585 = 30,574.60 : x
  2. Step 2: Convert to fraction form
    31,829.40/43,585 = 30,574.60/x
  3. Step 3: Cross multiply
    31,829.40x = 43,585 × 30,574.60
  4. Step 4: Simplify right side
    31,829.40x = 1,332,593,941
  5. Step 5: Solve for x
    x = 1,332,593,941/31,829.40
  6. Step 6: Final answer
    x = 41,866.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.